CN105370796A

CN105370796A - Conveyor belt fastener and method of manufacture

Info

Publication number: CN105370796A
Application number: CN201510509561.9A
Authority: CN
Inventors: W·J·丹尼尔斯
Original assignee: Flexible Steel Lacing Co
Current assignee: Flexible Steel Lacing Co
Priority date: 2014-08-18
Filing date: 2015-08-18
Publication date: 2016-03-02
Anticipated expiration: 2035-08-18
Also published as: WO2016028586A1; AU2019246906B2; CN206092811U; US9556930B2; AU2015305863B2; RU2707434C2; US9829067B2; CA2957561A1; US20180080526A1; PL3183473T3; US10385943B2; EP3183473A1; CN105370796B; US10107359B2; AU2015305863A1; EP3183473A4; US20160047438A1; RU2017106946A; AU2021282460A1; AU2019246906A1

Abstract

In one aspect, a conveyor belt fastener is provided having a rigid body made from a strip of cold-rolled or cold-drawn material such as steel. The body has an upper plate portion, a lower plate portion, and loop portions connecting the upper and lower plate portions. The upper and lower plate portions each have a variable cross-sectional thickness laterally thereacross including raised walls projecting outwardly and ribs projecting inwardly. The fastener has at least one attachment member, such as a staple, for connecting the plate portions to a conveyor belt end and the raised walls protect the staple once driven into the conveyor belt end. A method of manufacturing a fastener is also provided including longitudinally advancing a strip of material having a variable cross-sectional thickness laterally thereacross through processing equipment and forming apertures through thinner material of the strip with the processing equipment for attachment member(s) of the fastener.

Description

Conveyor belt fastening piece and manufacture method thereof

The cross reference of related application

This application claims the rights and interests of No. 62/038,669, the U.S. Provisional Patent Application submitted on August 18th, 2014, this U.S. Provisional Patent Application adds herein by quoting with its entirety thus.

Technical field

The present invention relates to conveyor belt fastening piece and manufacture method thereof, and relate more specifically to conveyor belt fastening piece, it uses bail, rivet or alternate manner to secure fasteners to conveyor belt.

Background technique

Used for conveyer belt in material or goods are transported to another place from a place.Conveyor belt provides with predetermined length usually, and this needs band fastening piece by two of the band of a segment length end winding support to together to form continuous band.Conveyor belt fastening piece is also for repairing in operation such as by tearing or tear and impaired conveyor belt.Can be articulated type with fastening piece, and can bail, riveted joint or be otherwise fixed to strap end portion and linked together by joint pin subsequently.

Authorize the U. S. Patent 4,060 of Xi Ke (Schick), No. 877 fastening pieces disclosing a type, it has isolated arm for being fixed to conveyor belt end and the knuckle joint being connected described arm.The arm of fastening piece is fixed to an end of conveyor belt, and knuckle joint and being bonded with each other from the knuckle joint that the arm of the fastening piece being fixed to conveyor belt the other end is outstanding.Knuckle joint is connected to together by joint pin, the opening of described joint pin by being formed by the knuckle joint be bonded with each other.The knuckle joint of each fastening piece has the width of reduction to allow being bonded with each other between knuckle joint relative to the arm of fastening piece.The width reduced can reduce the intensity of fastening piece at knuckle joint place, and wherein when the fastening piece on conveyor belt and its is advanced on the cylinder or carrying roller of belt system, described fastening piece stands great loading capacity at knuckle joint place.

U. S. Patent 4,060, No. 877 disclose fastening piece and are made up of the piece of metal sheet material over the whole length with almost constant width.In order to form knuckle joint, each face of this sheet metal sheet turn back against each other in case reside in be substantially perpendicular to fastening piece clamping tongue plane in.U. S. Patent 4,060, No. 877 disclose this process turning back metal sheet to be formed knuckle joint U-shaped cross-section and strengthen knuckle joint.But the metal sheet that turns back makes the manufacture of fastening piece complicated with the step forming articulated joint U-shaped cross-section, and the cost of production increasing fastening piece owing to needing the flattened cross-sectional of this sheet metal sheet to become fastening piece knuckle joint U-shaped structure.

Authorize the U. S. Patent 5,182 of Xi Ke (Schick), No. 933 disclose the method for producing for by interconnective for conveyor belt U-shaped folder.This folder utilizes the deep-draw and punching operation carried out continuously on metal band and is formed.Fixture has upper arm and underarm, and each arm is porose, and rivet or fixing bail will be extended by described hole one of to be fixed to by folder in conveyor belt end.Load from conveyor belt operation can cause being formed in upper arm and underarm from described hole along arm to the crackle of external diffusion or atenuator region.Because the section comprising hole of upper arm and underarm is flat, the ability of the opposing fracture propagation of arm depends on the thickness of arm section.The thickness increasing arm section can make arm section more solid and can resist crackle better and spread from hole, but the thickness increase of arm section can increase folder height on the conveyor belt or profile.Folder height increase on the conveyor belt can cause larger wearing and tearing to conveyor belt cleaner, and reason is that conveyor belt cleaner is clashed in higher being clipped in when conveyor belt rotates at every turn.

Summary of the invention

According to an aspect, be provided for the conveyor belt fastening piece stitched together the end of conveyor belt, it has main body, and described main body has a pair relative outboard end part and has the elongated beam part of length of longitudinal extension between end part outside.Beam part has upper part, low portion, and bends to the curved annular part making upper part be orientated to spaced apart at gaps betwixt above low portion.Elongated beam part have stride across its along the roughly uniform cross section of beam partial-length.Beam part operates as the rigidity bearing carrier being suitable for conveyor belt fastening piece, and the cross section of beam part provides relatively large area inertia moment in whole beam part, bends due to the load operated from conveyor belt to resist beam part.In addition, the high rigidity of beam part is provided in the anti-deflection intensity of annulus office, stands the high capacity from joint pin when conveyor belt is advanced around the head cylinder of belt system and idle pulley in annulus office.

Fastener body is also included in the web part of upper part place from beam part side extending of beam part and the low portion in the beam part web part from beam part side extending.Web part has the thickness of reduction relative to described beam part, and the web part making the upper part of beam part adjacent relative to side direction with low portion is protruding.Fastener body has the hole in the web part reduced at thickness, it is from the laterally offset of beam part and be sized to receiving attachment members, and upper part and the low portion of the projection extended along attachment members of its central sill part are received within the hole of the web part that thickness reduces.Because the upper part of beam part and low portion extend along attachment members, the upper part of described beam part and low portion can absorb in conveyor belt operation period and impact, instead of are absorbed by attachment members and impact.

In one form, the upper part of beam part and low portion comprise the wall outwardly extended deviating from conveyor belt of the web part reduced from thickness.Attachment members can be bail, and it has leg and curved part, and leg is press-fitted in the hole of in the web part that thickness reduces, and the leg that curved part is settled for the outer surface connected against this web part.As hereafter discussing in more detail, delivered in conveyor belt end once bail drives, then the outer wall of beam part protects curved part and the leg end of bail.The upper part of beam part and low portion also can comprise the internal surface flank sunk in conveyor belt, and the upper part of beam part and low portion are clamped on conveyor belt by it, and provide the clamping of high strength to conveyor belt end.

According to another aspect, be provided for the tabular fastening piece of conveyor belt, it has upper plate-like portion and bottom plate portion, and described plate portion has the thickness of the change of the rigidity increasing upper plate-like portion and bottom plate portion.More specifically, upper plate-like portion and bottom plate portion do not have the outer surface that deviates from band and the internal surface for splicing tpae.Upper plate-like portion and bottom plate portion have the thickness striding across the change of outer surface and internal surface side extending between outer surface and internal surface.Described fastening piece comprise at least one attachment members for plate portion being connected to conveyor belt end and at attachment members either side place away from band outer surface wall outwardly.Because outer surface wall at the either side place of attachment members outwardly, therefore the material repels of outer surface wall strides across from attachment members the crackle or atenuator region that top plate-like portion and bottom plate portion spread.Outer surface wall relies on opposing crackle or atenuator region to increase the durability of fastening piece from attachment members diffusion thus.

Upper plate-like portion and bottom plate portion have the internal surface flank inwardly given prominence to towards described band, and wherein said internal surface flank is vertically aimed at outer surface wall and from least one attachment members laterally offset described.Internal surface flank to be snapped in conveyor belt and to engage conveyor belt, wherein by upper plate-like portion and bottom tabular grips on conveyor belt end.Upper plate-like portion and bottom plate portion have the tabular section of side extending between the wall aimed at and flank, and this tabular section has thickness and is less than the wall of aligning and the constant thickness of flank.Between the wall aimed at and flank, the more lamellar section of side extending provides a region; described region is for receiving at least one attachment members described; simultaneously outer surface wall on the either side of attachment members outwardly, to protect attachment members such as to avoid contacting the material or collision conveyor blade blade be transferred.

In one form, described fastening piece comprises annulus, its with upper plate-like portion and the outer surface wall of bottom plate portion and internal surface flank longitudinally aim at.Annulus and vertically aligned outer surface wall and internal surface flank have the same thickness being greater than tabular section thickness.The aligning of annulus and vertically aligned wall and flank and the uniform thickness that caused by it provide high intensity by eliminating annulus and the varied in thickness between upper plate-like portion and bottom plate portion to annulus, wherein annulus be connected to upper plate-like portion and bottom plate portion position its can be used as stress concentration point operation.

Upper plate-like portion and bottom plate portion and annulus can be made up of cold rolling or cold drawn material, make them very hard and durable.In a kind of scheme, upper plate-like portion and bottom plate portion and annulus are made up of cold rolling steel and have about 95 on Rockwell B scale to the hardness in about 105 scopes, are preferably the hardness of about 100 on Rockwell B scale.

In yet another aspect, the swivel hook tabular fastening piece (hinge-loopplatefastener) stitched together conveyor belt end is provided for.Described fastening piece has the main body formed by the rolling blank material of predetermined high hardness level.Fastener body comprises upper plate-like portion and the bottom plate portion of rolling, and each plate portion has the cross section of the change extending laterally across it.The exterior projection that plate portion has rolling is divided and inner bulge part, and wherein exterior projection divides longitudinal extension on the either side of at least one attachment members.Described fastening piece also comprises the annulus of rolling, and it comprises the blank material of high hardness level and has the arcuate structure extended between plate portion.Because curved annular part is rolled and has the rolling blank material of high hardness level, therefore annulus does not need extra process to obtain its predetermined high hardness level.This scheme and existing fastening piece are formed and contrast, the U. S. Patent 4 of Xi Ke (Schick) such as authorized by existing fastening piece, 060, the fastening piece of No. 877, this fastening piece has knuckle joint, described knuckle joint has by the section of knuckle joint being gone back to the U-shaped cross section that himself is formed to form knuckle joint, and this process is by complicated for the manufacture of this existing fastening piece.

In one form, annulus and the upper plate-like portion of rolling and the exterior projection of bottom plate portion are divided and are aimed at and extend continuously.Which improve at the convex portion extended along plate portion and contact the tension load shared between the annulus of the joint pin of conveyor belt.

According to another aspect, be provided for the tabular fastening piece connected together the end of conveyor belt, it comprises three bails, and each bail has the curved part of a pair leg and connected legs.Described fastening piece has upper plate-like portion, and it has the inside edge that the end for proximity band is arranged, and wherein upper plate-like portion is clamped on it by bail.One, the centre of three bails offsets closer to the inside edge of upper plate-like portion in the vertical, makes the described further away from each other inside edge of two other bail.The leg of outside bail thus penetrate conveyor belt, than the respective leg portions of middle bail more away from the end of conveyor belt, the thicker section of conveyor belt is positioned between outside bail leg and conveyor belt end by this, and increases the resistance pulled out from conveyor belt by fastening piece.In other words, the leg of outside bail penetrates conveyor belt, than middle bail leg more away from the end of conveyor belt, thus moves the resistance also increasing in (reachback) to conveyor belt and pulled out from conveyor belt by fastening piece after strengthening outside bail.

In one form, this tabular fastening piece is swivel hook tabular fastening piece, and comprises bottom plate portion and connect at least one hinge annulus of upper plate-like portion and bottom plate portion.Upper plate-like portion has three pairs of holes, is suitable for the bail in upper plate-like portion, and each in wherein paired hole is longitudinally aimed at.Lower panel also has three pairs of holes, and it is aimed at the hole pairs in upper plate-like portion.Because the hole in upper plate-like portion and bottom plate portion is aimed at, the leg of described bail can drive the hole sent by upper plate-like portion, by conveyor belt, and enters in the hole of bottom plate portion.Bail leg is the bending end against bottom tabular partial outer face after comprising the hole through bottom plate portion.

Upper plate-like portion can have a vicissitudinous section thickness, comprises the upstanding wall of the passage in the hole wherein forming upper plate-like portion and the either side longitudinal extension along at least two passages.The curved part of corresponding bail is in the channel settled in upstanding wall protection, and wherein upper plate-like portion is clamped to and brings.Passage can be included in the outer passage that the projection of upper plate-like portion is formed, and it extends to one in the lateral side of upper board, and one wherein in upstanding wall is positioned at another lateral side place.When the upper plate-like portion of a pair fastening piece is attached on the conveyor belt adjacent to each other, the upstanding wall at the lateral side place of in upper plate-like portion coordinates to protect the curved part be associated with another the projection in upper plate-like portion of bail.

The upper plate-like portion of fastening piece also can have the vertical surface extended between the outer surface of the upper plate-like portion at its lateral side place and internal surface.The profile that vertical surface has is suitable for allowing adjacent upper plate-like portion to be attached across conveyor belt with the relation of tight spacing or joint.Vertical surface provides the gap between adjacent upper plate-like portion and allows upper plate-like portion pass through band grooving (beltingtroughing) and relative to each other move.By allowing the motion of adjacent upper plate-like portion, the region place of conveyor belt attached by upper plate-like portion between upper plate-like portion stands less stretching, and this reduces the stress in conveyor belt in grooving (troughing) operation period to conveyor belt.

According on the other hand, provide the method manufacturing and be suitable for the tabular fastening piece of conveyor belt.The method comprises and makes the material bands of longitudinal extension longitudinally form tabular fastening piece by processing equipment, and described material bands has in a lateral direction across the section thickness of the change of band.The band of the vicissitudinous section thickness of tool comprises at least one passage along band longitudinal extension continuously.The method also comprise by described processing equipment the fastening piece plate-like portion office of at least one passage formed by the aperture compared with thin material band, to allow at least one attachment members of tabular fastening piece to extend through aperture.Because aperture is formed in the fastening piece plate portion of at least one passage, so at least one passage receivability described and protection at least one fastener member described, wherein fastener member extends through aperture.

In a kind of scheme, making before band longitudinally forms tabular fastening piece by processing equipment, described material bands is by cold rolling or cold drawnly to provide in a lateral direction across the section thickness of the change of band.By utilizing the cold rolling or cold drawn section thickness providing change in band, the processing equipment for the formation of tabular fastening piece does not need to comprise the operation of the section thickness forming band change.This and some existing schematic design making contrast, and the need a person with the qualifications of a general section of material strip band of existing scheme turns back to build the cross section of fastening piece, is such as authorizing the U. S. Patent 4,060 of Xi Ke (Schick), described in No. 877.Therefore the processing equipment performing the method can more effective and that cost is lower mode operate, such as by requiring that the punch press of less tonnage comes to form tabular fastening piece with material bands.

The method also can comprise and forms at least one elongated window by processing equipment, it passes through comparatively thin material band between the fastening piece plate portion of at least one passage, at least one thicker of remaining band divides contiguous described window, to form at least one thick annulus of tabular fastening piece.By forming at least one elongated window in material bands, when fastening piece is connected to the opposed end of conveyor belt and annulus is bonded with each other around joint pin, at least one elongated window of the fastening piece formed by material bands provides the gap of at least one annulus receiving contiguous fastening piece.In addition, described material bands has predetermined hardness, and forms the predetermined hardness that at least one window described does not change material in annulus.Therefore, at least one annulus has higher hardness and intensity, and does not need the additional operation of turning back of prior art, this simplify the manufacture of fastening piece.

Accompanying drawing explanation

Fig. 1 is the perspective view of conveyor belt joints, and it comprises the fastening piece being fixed to conveyor belt end, and the annulus of the fastening piece wherein on conveyor belt one end engages each other around the annulus of joint pin with the fastening piece on conveyor belt the other end;

Fig. 2 is the perspective view of one of fastening piece shown in Fig. 1, and two bails be preset in fastening piece upper plate-like portion are shown;

Fig. 2 A is the side view of fastening piece shown in Fig. 2, and before being clamped on conveyor belt end, to be in the fastening piece opened under structure upper plate-like portion and bottom plate portion are shown;

Fig. 3 is across the cross sectional view of the upper plate-like portion that the line 3-3 in Fig. 2 gets, and illustrates that the hole of upper plate-like portion is from the concave wall laterally offset plate portion outer surface;

Fig. 4 is across the cross sectional view of the bottom plate portion that the line 4-4 in Fig. 2 gets, and the outwardly extension of concave wall from bottom plate portion is shown;

Fig. 5 is across the cross sectional view that the line 5-5 in Fig. 2 gets, and the cross section of fastening piece annulus is shown, the upper plate-like portion at its thickness had and the concave wall place shown in Fig. 3 and Fig. 4 and the thickness of bottom plate portion match;

Fig. 6 is across the cross sectional view that the line 6-6 in Fig. 2 gets, and the projection flank on upper plate-like portion internal surface and the wall perpendicular alignmnet on upper plate-like portion outer surface are shown;

Fig. 7 is the perspective view of the material bands that the main body of fastening piece shown in Fig. 2 is made up of it, illustrates that vertically aligned wall and flank are formed in this material bands;

Fig. 8 and Fig. 9 is before the annulus of main body bends and bail is preset in upper plate-like portion, the top and bottom perspective views of fastener body shown in Fig. 2;

Figure 10 is the schematic diagram of the method forming fastening piece shown in Fig. 2;

Figure 11 is the perspective view of another fastening piece, illustrates that three bails are preset on the upper plate-like portion of fastening piece;

Figure 12 is across the cross sectional view of the fastening piece that the line 12-12 in Figure 11 gets, and the conveyor belt end that fastening piece is fixed to the head cylinder around conveyor belt and is pulled is shown;

Figure 13 is across the cross sectional view of the fastening piece that the line 13-13 in Figure 11 gets, and the cross section of base section and the neutral axis of base section of the fastening piece annulus when fastening piece pulls around the head cylinder shown in Figure 12 are shown;

Figure 14 is across the cross sectional view of the upper plate-like portion that the line 14-14 in Figure 11 gets, and what the hole of upper plate-like portion was shown is sized to the leg receiving bail;

Figure 15 is across the cross sectional view of the bottom plate portion of the fastening piece that the line 15-15 in Figure 11 gets, and the flank extended internally from the internal surface of bottom plate portion is shown, it is vertically aimed at the wall outwardly extended from bottom plate portion;

Figure 16 is the enlarged portion of Figure 14, and the vertical surface of upper plate-like portion at an one lateral side place is shown, it has the profile that tapers inwardly to provide gap to the lateral side of fastening piece near conveyor belt end;

Figure 17 is across the cross sectional view that the line 17-17 in Figure 11 gets, and illustrates that bottom plate portion has inboard portion and the external lateral portion of the different taperings of vertical surface at the vertical surface at another lateral side place of fastening piece;

Figure 18 is the perspective view of the material bands that the main body of the fastening piece shown in Figure 11 is made from it, illustrates that vertically aligned wall and flank are formed in this material bands;

Figure 19 and Figure 20 be in the upper plate-like portion that the annulus of main body bends and bail is preset in fastening piece before, the top and bottom perspective views of fastener body shown in Figure 11;

Figure 21 is the perspective view of conveyor belt joints, and it comprises the fastening piece being fixed to conveyor belt end, and the annulus of the fastening piece wherein on conveyor belt one end engages each other around the annulus of joint pin with the fastening piece on conveyor belt the other end;

Figure 22 is the perspective view of several fastening pieces of the one-tenth shown in Figure 21 one group, illustrates that three bails are preset on the upper plate-like portion of each fastening piece;

Figure 23 is one of conveyor belt end shown in Figure 21 and the plan view of joint pin, illustrates that the bail of fastening piece drives and delivers in conveyor belt end and the annulus of fastening piece extends around joint pin;

Figure 24 is across the cross sectional view that the line 24-24 in Figure 23 gets, and illustrates that the leg of bail extends through conveyor belt between the upper plate-like portion and bottom plate portion of one of fastening piece;

Figure 25 is across the cross sectional view that the line 25-25 in Figure 23 gets, and the thickness of the substantial constant of the aligning annulus of the concave wall on the upper plate-like portion of fastening piece, fastening piece and the concave wall on the bottom plate portion of fastening piece is shown;

Figure 26 is across the cross sectional view of the line 26-26 in Figure 23, illustrates that the leg of bail extends through the outer surface of bend at end against the bottom plate portion of fastening piece of conveyor belt and a bail;

Figure 27 is across the cross sectional view of the upper plate-like portion of the fastening piece that the line 27-27 in Figure 22 gets, the cross section of the change of upper plate-like portion is shown, this upper plate-like portion is included in the concave wall on the outer surface of upper plate-like portion and the projection flank on the internal surface of described plate portion;

Figure 28 is across the cross sectional view of the bottom plate portion of the fastening piece that the line 28-28 in Figure 22 gets, and the connecting line on the internal surface being fixed to fastening piece bottom plate portion is shown;

Figure 29 is the zoomed-in view of a part of Figure 26, illustrates that the end sections in hole and bail leg that bail leg extends through bottom plate portion bends the outer surface against bottom plate portion;

Figure 30 is the zoomed-in view of Figure 27 part, and the vertical surface at a lateral side place at upper plate-like portion is shown;

Figure 31 is the zoomed-in view of Figure 27 part, and the vertical surface of the upper plate-like portion at the relative lateral side place at upper plate-like portion is shown;

Figure 32 is across the cross sectional view that the line 32-32 in Figure 22 gets, and illustrates that the collar surrounding hole being sized to leg and the bottom plate portion receiving one of bail in the hole in the plate portion of bottom extends;

Figure 33 is across the cross sectional view that the line 33-33 in Figure 23 gets, and fastening piece shown in broken lines is pivoted to oblique position in response to the grooving of conveyor belt, and outside the side direction of fastening piece vertical surface breasting is each other;

Figure 34 is before its annulus is bending and bail is preset in upper plate-like portion, the plan view of the main body of one of fastening piece shown in Figure 22;

Figure 35 is the worm's eye view of fastener body shown in Figure 34, illustrates that rib portion on fastener body internal surface is from annulus laterally offset;

Figure 36 is across the end view that the line 36-36 in Figure 23 gets, and illustrate that the fastening piece of a conveyor belt end is arranged side by side along joint pin, and the annulus of fastening piece extends around joint pin;

Figure 37 is the schematic end side view of joint pin shown in Figure 21, joint pin is shown and a conveyor belt end bending due to the grooving of conveyor belt, and the annulus of selected fastening piece in the conveyor belt end fasteners illustrated on joint pin is angled due to the grooving of conveyor belt;

Figure 38 is the perspective view of the material bands that the fastener body shown in Figure 34 and Figure 35 is made from it, illustrates that the outer wall of laterally offset and inner side flank are formed in this material bands;

Figure 39 is the schematic diagram of the method forming the fastening piece group shown in Figure 22;

Figure 40 is the perspective view of the conveyor belt joints comprising fastening piece, and described fastening piece has the Rigid Fastener main body that the end of conveyor belt is combined, and wherein the bail of fastening piece removes to illustrate the hole of the fastener body above conveyor belt end;

Figure 41 is the perspective view of another fastening piece, illustrates that the upper plate-like portion of fastening piece and bottom plate portion are interconnected by the hinge annulus of a pair arc; And

Figure 42 is across the cross sectional view that the line 42-42 in Figure 41 gets, and the less raised lip at a lateral side place of upper plate-like portion or wall are shown, so that the bail curved part that protection is settled near wall.

Embodiment

See figures.1.and.2, be provided for the fastening piece 1 of the conveyor belt joints 3 end 5A, 5B of conveyor belt 5 connected together.Fastening piece 1 has curved annular part 8, to extend around the joint pin 3A of joints 3 and to be bonded with each other with the annulus 8 of the fastening piece 1 on opposed end 5A, 5B of conveyor belt 5.Each fastening piece 1 has main body 2, and it comprises upper plate-like portion 4 and bottom plate portion 6 and the annulus 8 with the arcuate structure being connected upper plate-like portion 4 and bottom tabular 6.With reference to Fig. 2 A, under upper plate-like portion 4 and bottom plate portion 6 are in isolated open configuration at first, wherein plate portion 4,6 relative to each other tilts to extend, and this allows fastening piece 1 to navigate on end one of 5A, 5B of conveyor belt 5.Then upper plate-like portion 4 and bottom plate portion 6 are clamped on end 5A, 5B, and upper plate-like portion 4 and bottom plate portion 6 are reconfigured to closed configuration by it, so that their fastening pieces 300 be similar in Figure 12 are roughly parallel to extend each other.Fastening piece 1 has one or more attachment members, such as bail 20,22, it has the leg 24,26 defaulted in upper plate-like portion 4, delivers in conveyor belt end 5A, 5B to drive and shape, 5B are fixed to clamping 5, recessed conveyor belt end by between the upper plate-like portion 4 of shape, 5B and bottom plate portion 6 by 5, conveyor belt end.As used herein, term " conveyor belt " intention contains single conveyor belt or comprises the band of multiple conveyor belt.Such as, fastening piece 1 can be used for the joints 3 between end 5A, 5B forming single conveyor belt 5.As another example, conveyor belt 5 can comprise two conveyor belt 5, and fastening piece 1 can be used for forming the joints 3 between the end 5A of one of the conveyor belt 5 and end 5B of another conveyor belt 5.

With reference to Fig. 2, Fig. 3 and Fig. 4, fastener body 2 has the cross section of the change in a lateral direction across upper plate-like portion 4 and bottom plate portion 6, is included in the thickness of the change of its outer surface and internal surface 46,12 and the upper plate-like portion 4 extended between 46A, 12A and bottom plate portion 6.The cross section of the change of fastener body 2 is included in the thicker beam part 40 of a pair of longitudinal extension between outboard end 30,30A (with reference to Fig. 2), and it operate the bending and impact caused by conveyor belt with opposing as bearing carrier operation.The cross section of the change of fastener body 2 is also included in the web part 42 that upper plate-like portion 4 and bottom plate portion 6 place reduce from the thickness of beam part 40 side extending.The concave position place of web part 42 between beam part 40 that thickness reduces is provided for the region of receiving bail 20,22, to protect bail 20,22 by beam part 40 in the operating process of conveyor belt 5.

Beam part 40 is included in upper part 39 and the low portion 39A (with reference to Fig. 2) at upper plate-like portion 30 and bottom plate portion 32 place, and beam part 40 is also included in the annulus 8 in the middle of upper part 39 and low portion 39A.Beam part 40 has the cross section of getting laterally across it respectively, is uniform substantially for the length of the beam part 40 between its outboard end 30 for main body 2,30A.With reference to Fig. 3 to Fig. 5, mark the cross section of one of beam part 40 at upper part 39, annulus 8A and low portion 39A place with dotted line frame 37A, 37B, 37C respectively.The cross section of beam part 40 can be roughly polygonal, the substantially rectangular cross section such as shown in Fig. 3 to Fig. 5, and its length along beam part 40 is uniform.

Substantially the uniform cross section intention of described beam part 40 is encompassed in the partial deviations on beam part 40 cross section, the deviation such as caused due to the punching press of beam part 40 and change the deviation caused due to the manufacture in blank material band 183 size being formed main body 2 by it.As shown in Fig. 3 to Fig. 5, beam part 40 comprise annulus 8 and upper part 39 and low portion 39A whole on also there is the thickness 41 of substantial constant, make beam part 40 provide rigid construction to resist the load of conveyor belt operation period.Be similar to the substantially uniform cross section of each beam part 40 along its length, thickness 41 intention of constant is encompassed in the partial deviations on thickness 41, the deviation such as caused due to the punching press of beam part 40 and change the deviation caused due to the manufacture in blank material band 183 size.

With reference to Fig. 3 and Fig. 6, the upper part 39 of beam part 40 comprises from the outer surface 46 outward extending outside concave wall 44,45 of upper plate-like portion 4 and the inner bulge flank 48,49 that extends internally from the internal surface 12 of upper plate-like portion 4.Outside concave wall 44,45 forms the passage 111,113 along upper plate-like portion 4 longitudinal extension, and it receives the curved part 72 of bail 20,22.Similarly, the low portion 39A of beam part 40 comprises from the outward extending outside concave wall 44A of the outer surface 46A of bottom plate portion 6,45A (with reference to Fig. 4) and inner bulge flank 48A, 49A of extending internally from the internal surface 12A of bottom plate portion 6.Concave wall 44A, 45A form passage 111A, 113A in outside, and it is for receiving the end of the bending (bent-over) of the leg 24,26 of bail 20,22.Particularly, the end of leg 24,26, to bend into about the mode of 90 degree with the remaining part of the leg 24,26 extending through band 5, makes the leg end bent engage against the outer surface 46A in passage 111A, 113A.

The outside concave wall 44,45 of upper plate-like portion 4 and bottom plate portion 6 and 44A, 45A are impacted by absorption and the wearing and tearing reduced from surrounding structure protect the curved part 72 of the leg 24,26 of bail 20,22 and the end of bending, the carrying roller of the conveyor belt cleaner that described surrounding structure such as engages with the outer surface of band 5 and support belt 5 internal surface.In a form, concave wall 44,45 and 44A, 45A have the height being less than bail 20,22 diameter.Although the curved part 72 of the leg 24,26 of bail 20,22 and the fraction of end will project outwardly beyond wall 44,45 and 44A, 45A at first, these projections of bail 20,22 can will be worn, until the curved part 72 of leg 24,26 and end no longer project outwardly beyond wall 44,45 and 44A, 45A due to the impact that causes from the carrying roller of the conveyor belt cleaner engaged with the outer surface of band 5 and support belt 5 internal surface and wearing and tearing.Wall 44,45 and 44A, 45A then absorb by clearance blade and carrying roller instead of the impact caused by curved part 72 and the end of leg 24,26 and wearing and tearing.By this way, wall 44,45 and 44A, 45A are limited in the amount that in the operating process of conveyor belt 5, the curved part 72 of leg 24,26 and the meeting of end wear away.

With reference to Fig. 4 and Fig. 6, outer wall 44,45,44A, 45A and inner side flank 48,49,48A, 49A form the crenellate cross section of upper plate-like portion 4 and bottom plate portion 6.Vertically aligned outer wall 44,45,44A, 45A and inner side flank 48,49,48A, 49A also longitudinally aim at annulus 8A, 8B.As discussed in more detail below, this aligning allow annulus 8A, 8B have with perpendicular alignmnet wall 44,45,44A, 45A and flank 48,49, thickness 41 that 48A, 49A are identical, this reduces the stress riser in main body 2 owing to causing in the material thickness variation of annulus 8A, 8B and the joint between upper plate-like portion 4 and bottom plate portion 6.

With reference to Fig. 2, Fig. 3 and Fig. 4, the internal surface 12 of upper plate-like portion 4 and bottom plate portion 6,12A towards each other with end 5A, 5B of band.The outer surface 46 of upper plate-like portion 4 and bottom plate portion 6,46A deviate from end 5A, 5B of band.Because upper plate-like portion 4 and bottom plate portion 6 are positioned on the opposite side of strap end portion 5A, 5B, the lower surface of the outer surface 46 of upper plate-like portion 4 to be the upper surface of upper plate-like portion 4 and internal surface 12 be upper plate-like portion 4.On the contrary, the upper surface of the outer surface 46A of bottom plate portion 6 to be the lower surface of bottom plate portion 6 and internal surface 12A be bottom plate portion 6.

The web part 42 of upper plate-like portion 4 and bottom plate portion 6 comprise tabular section that thickness reduces 52,54,52A, 54A, wherein paired hole 60,62 and 60A, 62A be formed in tabular section that thickness reduces 52,54, in 52A, 54A.As hereafter discussed in more detail, the leg 24,26 be sized to for receiving bail 20,22 of hole 60,62 and 60A, 62A.The tabular section 52 that thickness reduces, 54,52A, 54A laterally across and longitudinally there is along upper plate-like portion 4 and bottom plate portion 6 thickness of substantial constant.Be contemplated that tabular section 52,54, the thickness of this substantial constant of 52A, 54A comprises partial deviations in the thickness around hole 60,62 and 60A, 62A that can produce in the forming process of hole 60,62 and 60A, 62A.

Main body 2 can be made up (see Fig. 7) of the elongate strips 183 of the blank material of cold forming (such as cold rolling or cold drawn steel), makes main body 2 be unusual rigidity and durable.A kind of scheme for forming main body 2 from elongate strips 183 is being discussed below with reference to Figure 10.Cold rolling or cold-drawing process forms the cross section comprising the change of the elongate strips 183 of wall 44,45 and flank 48,49, and in band 183, form the tabular section 52,54 of thickness reduction.Because main body 2 can be made from cold rolling or cold drawn band 183, therefore upper plate-like portion 4 and bottom plate portion 6 and annulus 8 are very durable, and build the cross section of upper plate-like portion 4 and bottom plate portion 6 and annulus 8 without the need to extra process or independent manufacturing step.As used herein, cold rolling or cold drawn material refers to when material temperature is lower than the material being rolled or drawing during its recrystallization temperature.Rolling stock refers to the material by one or more rolling mill process, and wherein each rolling mill has the roll under high tonnage, and changes of section is given to material by described roll.The roll of one or more rolling mill is given the plastic deformation in material and is increased the size of material grains.Under normal circumstances, the operation of rolling makes material grains be orientated to be parallel to the feedstock direction of material by the roll of one or more rolling mill.As used herein, drawing material refers to the material being pulled and being changed material section by one or more mould.Be similar to rolling, drawing material makes material plasticity be out of shape, and by pulling the cross section of material by a series of one or more mould for progressively changing material.

The substantially uniform lengthwise position that bail 20,22 provides bail 20,22 along upper plate-like portion 4 in conveyor belt end 5A, 5B when uniform lengthwise position place arranges and is fixed to the upper with convenient fastening piece 1.In other words, bail 20,22 is spaced apart equably from the outer ledge 29 of upper plate-like portion 4 and bottom plate portion 6,29A.The even longitudinal register of the bail 20,22 of fastening piece 1 is desired in some applications, with provide bail 20,22 even after move and more uniformly on conveyor belt end 5A, 5B, apply load.

With reference to Fig. 2, upper plate-like portion 4 and bottom plate portion 6 also have relative narrow lateral width 10.Being sized to of narrow lateral width 10 of upper plate-like portion 4 and bottom plate portion 6 adapts to conveyor belt grooving.Particularly, the space that each fastening piece 1 takies along joint pin 3A is minimized, and what this must be provided by each fastening piece 1 of reduction improves grooving for adapting to the angular metric of grooving conveyor belt.Width 10 can in the scope of about 0.5 inch to about 0.6 inch, all 0.56 inch according to appointment.Annulus 8A, 8B of fastener body 2 have the narrow width along joint pin 3A, and this improves the load balancing between the fastening piece 1 on joint pin 3A further.The width of each annulus 8A, 8B in the scope of about 0.1 inch to about 0.15 inch, all 0.12 inch according to appointment.

The narrow width 10 of upper plate-like portion 4 and bottom plate portion 6 also allows its internal surface 12,12A wider fastening piece existing compared to some to have the less occupation area on conveyor belt end 5A, 5B.This less occupation area allows upper plate-like portion 4 and bottom plate portion 6 more in depth to sink in conveyor belt end 5A, 5B, because upper plate-like portion 4 and bottom plate portion 6 compress the smaller section of conveyor belt end 5A, 5B.By more in depth sinking in conveyor belt end 5A, 5B, upper plate-like portion 4 and bottom plate portion 6 can catch conveyor belt end 5A, 5B more firmly.

With reference to Fig. 6, the tabular section 52 reducing thickness comprises the projection 70 outwards arranged from wall 44 side direction.With reference to Fig. 2, the leg 24,26 of bail 20 is driven in the hole 60,62 delivered in projection 70 and curved part 72 is arranged on projection 70.When multiple fastening piece 1 is fixed to conveyor belt end 5A, 5B, the wall 44 of a fastening piece 1 along bail curved part 72 longitudinal extension on the projection 70 being received within fastening piece 1, and protects a lateral side of bail curved part 72.In order to protect the relative lateral side of curved part 72, the wall 45 of the fastening piece 1 that the side direction on conveyor belt end 5A, 5B is adjacent extends from wall 44 in the relative lateral side of curved part 72 along curved part 72.The wall 44,45 of two adjacent fastener 1 thus together operation be hereafter placed in the bail curved part 72 on projection 70 relative to the mode protection of the wall 1044 and 1046 (see Figure 36) of fastening piece 1010A, 1010B discussion to be similar to.

With reference to Fig. 4 and Fig. 6, upper plate-like portion 4 and bottom plate portion 6 comprise relative side direction part 80,82 and 80A, 82A.Side direction part 80,82 and 80A, 82A comprise vertical surface 84,86 and 84A, 86A.Vertical surface 84A, 86A that the vertical surface 84,86 of upper plate-like portion 4 has profile different from each other and bottom plate portion 6 have profile different from each other.Specifically, vertical surface 86,86A have inboard portion 88 and external lateral portion 90 respectively, and inboard portion 88 and external lateral portion 90 have to be similar to mode at the vertical surface 400 discussed below with reference to Figure 17 relative to the different amount 89,91 of the axis 93 extended perpendicular to plate internal surface 12,12A.In the relative lateral side of upper plate-like portion 4 with bottom plate portion 6, vertical surface 84,84A have to be similar to the single straight part 77 in the mode of the vertical surface 396 discussed below with reference to Figure 16 95 orientations angled relative to axis 97 usually.Angle 95 can in the scope of about 2 degree to about 15 degree, all 3 degree according to appointment.

With reference to Fig. 8 and Fig. 9, the main body 2 of fastening piece 1 is shown, before annulus 8A, 8B are bent, under the configuration that perpendicular separation is opened, upper plate-like portion 4 is positioned at above bottom plate portion 6.With reference to Fig. 8, the wall 44,45 on upper plate-like portion 4 and bottom plate portion 6 and 44A, 45A aim at annulus 8A, 8B in the vertical along main body 2.The tabular section 52 that the thickness of corresponding upper plate-like portion 4 and bottom plate portion 6 reduces, 52A and 54,54A are by window 90 in the vertical from being spaced apart from each other, and described window 90 utilizes and carrys out formation main body 2 in the operation hereafter discussed more in detail.

With reference to Fig. 9, the flank 48,49 of upper plate-like portion 4 and bottom plate portion 6 and 48A, 49A aim at annulus 8A, 8B in the vertical.Annulus 8A, 8B comprise its inner bearing face 92, and its contact is also moved around joint pin 3A.

With reference to Figure 10, be provided for the method 200 forming fastening piece (such as fastening piece 1) from elongated shaped materials band (such as band 183) fast and according to the order of sequence.Method 200 comprises and makes band 183 run through processing equipment to form fastening piece 1.At first, provide band 183, the length 184 that it has is longer than the length of fastener body 2 and can be provided in the roll form.Band 183 can have the multiple sections along its length 184, and Application way 200 is sequentially prepared from described section by the main body 2 of fastening piece 1.Below discuss the operation 220,230,240,260,270,280 being advanced through method 200 at it according to a band section 183A to carry out.

At first, the band section 183A of band 183 advances to punching operation 220 on longitudinal direction 202, and it comprises window punching 222 to form window 90 and form annulus 8A, 8B in band section 183A.As used herein, term " formation " relates to any operation providing structure characteristic, and is not limited to the specified scheme for the manufacture of this structure characteristic.Such as, term " formation " not intention as used herein is limited to and makes component plastic deformation given shape is given to this component.The thickness of window punching 222 between wall 44,45 reduces section 54 (see Fig. 7) place and is removed from band section 183A by material, and forms window 90B in band section 183A.Window punching 222 also reduces section 52 place at thickness and is removed from band section 183A by material, and forms window 90A in band section 183A.As shown in Figure 10, window punching 222 reduces to form microscler window 90A, 90B in section 52,54 at the thickness of band section 183A between upper plate-like portion 4 and bottom plate portion 6, and vertically aligned wall 44,45 that it is remaining extends along band section 183A and flank 48,49 (see Fig. 7) also form annulus 8A, 8B of fastener body 2.

With reference to Figure 10, band section 183A is longitudinally travelled punching operation 230 in direction 202, and it comprises punching press and punching 232, with formed hole 60,62,60A, 62A and conical outer surface 275,275A.Punching press and punch operation 234 upper plate-like portion 4 and bottom plate portion 6 place formed along the passage 111,113 of band section 183A hole 60,62,60A, 62A.In a kind of scheme, the section 52 that drift is used for the thickness of the band section 183A in passage 111,113 to reduce, 54,52A, 54A penetrate.Punching press and punch operation 232 also form conical surface 275,275A in wall 44,45 and 44A, 45A, such as pass through the downside with press tool bracing strip section 183A and the outer end of punching press wall 44,45 and 44A, 45A.

Band section 183A advances to lock out operation 240 in direction 202, and band section 183A removes from band 183 by it.Lock out operation 240 forms outboard end 30, the 30A of band section 183A, and produces the fastener body 2 for assembling fastening piece 1 shown in Fig. 8 and Fig. 9.Lock out operation 240 can comprise cut-out punching press 242, and its upper plate-like portion 4 for the downstream section by band 183 cuts off from the bottom plate portion 6 of band section 183A.Cut-out punching press 242 also comprises to be cut off the bottom plate portion 6 of the upper plate-like portion 4 of band section 183A from the downstream section of band 183.Take both together, with the cutting of upper plate-like portion 4 place, band section 183A is separated from band 183 at the bottom plate portion 6 of band section 183A.When band 183 is continuously traveling on longitudinal direction 202, Reusability cuts off punching press 242 and is one after the other separated from band 183 by band section.

Use cut-out punching press 242 to be separated from band 183 by band section 183A and also can form U-shaped otch 259,259A (see Fig. 8) among the outboard end 30 of fastener body 2,30A.Cut off punching press 242 can comprise and use drift component, it is configured as and in the bottom plate portion 6 of band section 183A, produces U-shaped otch 259A and form U-shaped otch 259 in upper plate-like portion 4.Such as, single cuts off punching press 242 can first for cutting off the bottom plate portion 6 of the upper plate-like portion 4 of band 183 downstream section from band section 183A, band section 183A is longitudinally travelled in direction 202, then cuts off punching press 242 for being cut off by the bottom plate portion 6 of the upper plate-like portion 4 of band section 183A from the upstream zone of band 183.As another example, cut off punching press 242 twice and can be used for substantially side by side the bottom plate portion 6 of band section 183A being cut off from the upper plate-like portion 4 of band 183 downstream section and the bottom plate portion 6 of the upper plate-like portion 4 of band section 183A from upstream strip section being cut off.

Method 200 comprises assembly operation 260, once fastener body 2 is prepared from band section 183A by operation 220,230 and 240, then assembly operation 260 is for assembling fastening piece 1 from fastener body 2.Assembly operation 260 comprises and line 94 is connected the internal surface 12 that 262 arrive the upper plate-like portion 4 of band section 183A.Line 94 is connected 262 to occur before cut-out punching press 242 is used for the upper plate-like portion 4 of band section 183A to be separated from the bottom plate portion 6 of the upstream zone of band 183 to upper plate-like portion 4.This makes, once cut off punching press 242 and fastener body 2 be separated from band 183, more easily to process fastener body 2.Assembly operation 260 can comprise and the several fastener body 2 scaled off from band 183 being welded on same line 94.Several fastener body 2 on online 94 can be used for formation one group of fastening piece 1, the group 1017 shown in being similar in fig. 22.The scheme except line 94 should be understood that, under can be used for that fastening piece 1 is maintained one group.Such as, under having and receiving the carton blank of opening of bail 20,22 to can be used for that fastening piece 1 is maintained one group.

With reference to Figure 10, connection 262 advances to ring formation operation 270 to the one or more flat fastener body 2 of line 94, and it comprises annulus 8A, the 8B bending 272 making each fastener body 2.Annulus 8A, 8B bend make flat fastener body 2 be again formed into Fig. 2 open configuration under, upper plate-like portion 4 and bottom plate portion 6 are positioned in the relation that perpendicular separation is therebetween opened by it.Bending 272 can comprise annulus 8A, 8B of one or more fastener body 2 are bent simultaneously.

Then the one or more bending fastener body 2 being connected to line 94 advances to attachment members attended operation 280.In one form, operation 280 comprises inserts 282 in the hole 60,62 of the upper plate-like portion 4 of each fastener body 2 by the leg 24,26 of bail 20,22, engages with the press fit formed between leg 24,26 and upper plate-like portion 4.The part that the fastening piece 1 assembled has got out be used as joints 3 now fixes conveyor belt end 5A, 5B.

With reference to Figure 11, provide another fastening piece 300 with the many advantages being similar to fastening piece 1 advantage.Should be understood that, hereafter the discussion of the feature of fastening piece 300 is being applicable to the similar characteristics of fastening piece 1, vice versa.

Fastening piece 300 comprises high strength main body 302, and it has upper plate-like portion 304 and bottom plate portion 306 and the annulus 308 being connected upper plate-like portion 304 and bottom plate portion 306.Fastener body 302 can be formed (see Figure 18) from the band 310 of cold-worked material, such as cold rolling or cold drawn steel, and it has the uniform cross-section along its length 312.Be similar to fastening piece 10, described fastening piece 300 can have one or more attachment members, such as bail 374, is assembled in advance on upper plate-like portion 304 to increase fastening piece 300 can be fixed to conveyor belt end 5A, 5B easness by it.

Fastener body 302 has the beam part 320 of longitudinal extension and the web part 322 from beam part 320 side extending between the outboard end 410,410A of main body 302.With reference to Figure 11 and Figure 15, beam part 320 comprises from the outward extending wall of outer surface 330 324,326,328 of upper plate-like portion 304 with from the outer surface 330A of bottom plate portion 306 outward extending wall 324A, 326A, 328A.Beam part 320 also comprises the flank 332,334,336 extended internally from the internal surface 333 of upper plate-like portion 304 and flank 332A, 334A, 336A of extending internally from the internal surface 333A of bottom plate portion 306.As can be appreciable in fig. 14, the inner side flank 332,334,336 of upper plate-like portion 304 and outer wall 324,326,328 perpendicular alignmnet.Similarly, inner side flank 332A, 334A of the bottom plate portion 306 of fastening piece 300,336A and wall 324A, 326A, 328A perpendicular alignmnet.

Web part 322 comprise from the wall 324 aimed at, 326,328,324A, 326A, 328A and flank 332,334,336, the thickness of 332A, 334A, 336A side extending reduce tabular section 360,362,364,360A, 362A, 364A.Tabular section that described thickness reduces 360,362,364,360A, 362A, 364A have formed wherein for receive bail 374 hole 370,372,370A, 372A, as discussed in detail below.With reference to Figure 14 and Figure 15, tabular section that described thickness reduces 360,362,364,360A, 362A, 364A have predetermined thickness, its laterally across with longitudinally along upper plate-like portion 304 and bottom plate portion 306 are substantial constant.

Beam part 320 comprises annular portion 308, and it has three annulus 308A, 308B, 308C connecting upper plate-like portion 304 and bottom plate portion 306.Annulus 308A, 308B, 308C and wall 324,326,328,324A, 326A, 328A and flank 332,334,336,332A, 334A, 336A longitudinally aim at.This strengthens the serviceability of fastener body 302 by providing uniform thickness in whole beam part 320 and be limited in can be used as varied in thickness that stress riser carries out operating of annulus 308 and the joint between upper plate-like portion 304 and bottom plate portion 306.With reference to Figure 12 and Figure 13, illustrate that fastening piece 300 is fixed to conveyor belt end 5A, wherein when conveyor belt end 5A advances around the head cylinder 350 (relative conveyor belt end 5B and the fastening piece 300 on it are for the sake of clarity omitted) of conveyor belt 3, annulus 308 divides extension around joint pin 2 chain pin.Wall 328 and the flank 336 of the aligning of upper plate-like portion 304 have thickness 343, and ring-type section 308C has thickness 345, and the wall 328A aimed at and flank 336A has thickness 347.Thickness 343,345 and 347 substantially similar and an outboard end 410 along beam part 320 from fastener body 302 is continuous print to another outboard end 410A.Thick beam part 320 thus provide durable bearing carrier to bear the load from conveyor belt operation, and do not need to build annulus 308 by independent manufacture process as in some conventional treatment.

With reference to Figure 12, when conveyor belt end 5A advances around head cylinder 350 on the 350A of direction, the annulus 308 of fastening piece 300 is tending towards standing its highest internal stress.When conveyor belt end 5A, 5B advance around head cylinder 350, head cylinder 350 support the outer surface 330A of bottom plate portion 306 and joint pin 3A along direction 351 approximately towards under pull.Because bottom plate portion 306 is supported on head cylinder 350, downward power is applied in the curved section 348 of annulus 308 by joint pin 22 pulling on direction 351, and this attempts the base section 349 of annulus 308 is bent around head cylinder 350.But, annulus 308 and alignment wall 324,326,328,324A, 326A, 328A and flank 332,334,336, the thickness 343,347 of 332A, 334A, 336A is continuous print and has the thickness 345 identical with it, this base section 349 strengthening annulus 308 is resisted bending.

With reference to Figure 11, the wall of aligning 324,326,328,324A, 326A, 328A; Flank 332,334,336,332A, 334A, 336A; Formed with annulus 308A, 308B, 308C and extend to from an outboard end 410 the carrier bar part 320 that three of the fastener body 302 of another outboard end 410A have uniform thickness.With reference to Figure 13, when joint pin 3A pulls in the curved section 348 of annulus 308A, 308B, 308C along direction 351, beam part 320 is at annulus 308A, 308B, 308C place and have relatively large area inertia moment around neutral axis 352.Neutral axis 352 for providing a non-limiting example of neutral axis 352 position in conveyor belt operating process.Should be understood that, the load stood by annulus 308 in conveyor belt operating process can be quite complicated, and this discussion intention provides the basic comprehension of some advantages of fastener body 302.

More specifically, annulus 308C has cross section, and wherein inside region 354 is at neutral axis 352 upper vertical extend through distance 352A, and this distance is suitable with the thickness of the inner side flank 336A on bottom plate portion 306.Annulus 308C also has the exterior lateral area 356 in its cross section, and it is at the downward vertical extend through distance 352B of neutral axis 352, and this distance is suitable with the thickness of outer wall 328A.By making inner side flank 336A and outer wall 328A perpendicular alignmnet, perpendicular distance 352A, 352B that the region 354,356 of annular cross section extends above and below neutral axis 352 can be maximized.This so increase the area inertia moment of annulus 308C, this intensity increasing the base section 349 of annulus 308C is with bending around conveyor belt head cylinder 350 of opposing.Also due to the area inertia moment of increase caused from flank 332A, 334A of aiming at and wall 324A, 326A, intensity is larger for the base section 349 of other annulus 308A, 308B.By strengthening the base section 349 of each annulus 308, described fastener body 302 is more durable and can resist the load brought from advancing around head cylinder 350 better.

With reference to Figure 11, Figure 14 and Figure 15, tabular section that each thickness reduces 360,362,364,360A, 362A, 364A have the pair of holes 370,372 or 370A, 372A that are formed wherein, for receiving the leg 376,378 of the bail 374 be press-fitted in wherein.Bail 374 comprises the curved part 380 of connected legs 376,378, when bail 374 driven deliver in conveyor belt end 14,16 time, curved part 380 settles the outer surface 330 against upper plate-like portion.Delivered in conveyor belt once the leg 376,378 of bail has driven, then the curved part 380 of bail protected by the wall 324,326,328 of upper plate-like portion 304.In addition; after the bending outer surface 330A against bottom plate portion 306 in end 379,381, wall 324A, 326A, 328A (see Figure 15) of bottom plate portion 306 extend along the end 379,381 of the leg 376,378 of bail and protect end 379,381.

Upper plate-like portion 304 and bottom plate portion 306 have a pair relative, side direction external lateral portion 390,392 or 390A, 392A (see Figure 14 and Figure 15) respectively, its adapt to during the grooving of conveyor belt 16 near the pivotable of fastening piece 300.Because fastener body 302 (and upper plate-like portion 304 and bottom plate portion 306) is made up of band 310, paired side direction external lateral portion 390,390A and 392,392A are couplings, described band 310 comprises the side direction external lateral portion 390,392 previously formed wherein, as shown in Figure 18.More specifically, the side direction external lateral portion 390 of upper plate-like portion 304 matches with the side direction part 390A of bottom plate portion 306, and the side direction part 392 of upper plate-like portion 304 matches with the side direction part 392A of bottom plate portion 306.

With reference to Figure 16, side direction external lateral portion 390 will be discussed relative to upper plate-like portion 304.The section 360 that thickness reduces comprises the projection 394 with the hole 370,372 formed wherein.Side direction part 390 comprises vertical surface 396, and it has the straight part 397 tilted with angle 398 relative to vertical axis 399.Axis 399 is approximately perpendicular to the internal surface 333 of upper plate-like portion 304.Angle 398 in the scope of about 2 degree to about 15 degree, all 3 degree according to appointment.Straight surface portion 397 tapers inwardly, so that the vertical surface 400 (see Figure 17) of the fastening piece 300 near giving during conveyor belt 16 grooving provides gap.

With reference to Figure 17, side direction external lateral portion 392A will discuss relative to bottom plate portion 306.Wall 328A comprises vertical surface 400, and it has the inboard portion 402 and external lateral portion 404 that extend with different angles 406,408 relative to the axis 410 being approximately perpendicular to bottom tabular portion inner surface 333A.Vertical surface 400 also can be included in the connecting part 405 between inboard portion 402 and external lateral portion 404.In one form, angle 406 in the scope of about 2 degree to about 15 degree, all 3 degree according to appointment, and angle 408 is in the scope of about 2 degree to about 15 degree, all 6 degree according to appointment.By utilizing the compound-contoured of vertical surface 400, side direction external lateral portion 392,392A can provide the change gap of side direction external lateral portion 390 relative to neighbouring fastening piece 300,390A.More specifically, because outside vertical surface part 404 extends to the greater angle of surface portion 402 to be greater than medial shaft, when vertical surface 396,400 or the inclination between 396A, 400A increase due to the more remarkable grooving of conveyor belt 16, outside vertical surface part 404 gives the vertical surface 396 of neighbouring fastening piece 300,396A provides extra gap (being similar to fastening piece 1010A, 1010B of discussing below with reference to Figure 33).

With reference to Figure 19, fastener body 302 is shown, before annulus 308A, 308B, 308C are bent, under the configuration that the perpendicular separation is in fig. 11 opened, locates upper plate-like portion 304 and bottom plate portion 306.Upper plate-like portion 304 and bottom plate portion 306 comprise outboard end part 410,410A, wherein the guiding surface 414,416,418 of punching press is formed in the wall 324,326,328 of upper plate-like portion 302, and guiding surface 414A, 416A, 418A of punching press are formed in wall 324A, 326A, 328A.

As discussed above like that, delivered in conveyor belt end 5A, 5B once bail 374 drives, then wall 324,326,328,324A, 326A, 328A protect bail curved part 380 and leg end 379,381.In addition, hole 370,372 and 370A, 370A are positioned in upper plate-like portion 304 and bottom plate portion 306, inwardly to navigate on projection 394,394A as far as possible by hole 370,372 and 370A, 372A in side direction, maximize the interval between the bail 374 in conveyor belt end 5A, 5B simultaneously.Particularly, hole 370,372 in projection 394,394A and 370A, 372A are positioned near the base portion of wall 324,324A, and the hole 370,372 in projection 394,394A and 370A, 372A are maximized (see Figure 16) from the distance that outside vertical surface 396,396A side direction are inside by this.This make to be received into bail curved part 380 on projection 394,394A and leg end 376,378 in side direction inwardly away near the wall 328 of fastening piece 300,328A move to protect the bail 374 on projection 394,394A.

Upper plate-like portion 304 and bottom plate portion 306 stride across conveyor belt end 5A, 5B and separate bail 374 equably in side direction, the distance between bail 374 is maximized, and by the size of the conveyor belt section between bail 374 maximize, this increase fastening piece 300 run through resistance.In order to stride across upper plate-like portion 304 and bail 374 separates by bottom plate portion 306 equably, simultaneously by the bail 374 that is received within projection 390,390A in side direction from outside vertical surface 396,396A to inner position, be formed in hole 370,372 in section 362 that thickness reduces, 362A and 364,364A and 370A, 372A are formed at the base portion place of their corresponding walls 326,326A and 328,328A.This is positioned at wall 326,326A place by being received within section 362 that thickness reduces, bail curved part 380 in 362A and leg end 376,378 and the bail curved part 380 be received within section 364 that thickness reduces, 364A and leg end 376,378 is positioned at wall 328,328A place.Thus all bails 374 stride across upper plate-like portion 304 and bottom plate portion 306 is evenly spaced apart in side direction distance therebetween to be maximized, and the bail 374 be received within projection 394,394A in side direction near fastening piece 300 be recessed into.

With reference to Figure 20, upper plate-like portion 304 and bottom plate portion 306 have internal surface 420,420A, and wherein flank 332,334,336 and 332A, 334A, 336A extend internally (leaving from the page of Figure 11) from internal surface 420,420A.Compared to Figure 35 fastener body 1024, Figure 20 shown in fastener body 302 there is the flank 332,334,336 and 332A, 334A, 336A longitudinally aimed at annulus 308A, 308B, 308C.Hole 370,372 and 370A, 372A are positioned to from alignment wall 324,326 by this, 328,324A, 326A, 328A, flank 332,334,336, the longitudinal load path of 332A, 334A, 336A and annulus 308A, 308B, 308C departs from.

Turn back to Figure 11, upper plate-like portion 304 and bottom plate portion 306 have the narrow width 307 within the scope of about 0.8 inch to about 0.9 inch, such as 0.84 inch.Width 307 is enough narrow to allow upper plate-like portion 304 and bottom plate portion 306 to sink at that time in conveyor belt end 5A, 5B when being clamped to.Meanwhile, being sized to of width 307 adapts to three bails 374 being installed on upper plate-like portion 304.Upper plate-like portion 304 and bottom plate portion 306 thus by plate-like portion 304,306 being sunk in conveyor belt end 12,14 and by plate portion 304,306 being fixedly attached to conveyor belt end 5A, 5B via three bails 374 and providing solid clamping.

With reference to Figure 11 and Figure 16, upper plate-like portion 304 and bottom plate portion 306 have the surface 442 of perforate, its limiting hole 370,372 and 370A, 372A and be configured to form press fit to the corresponding bail leg 376,378 be received within wherein and engage.Upper plate-like portion 304 and bottom plate portion 306 also have the collar 440 extended around each hole 370,372 and 370A, 372A.During punch operation, hole 370,372,370A, 372A also by carrying out punching to upper plate-like portion 304 and bottom plate portion 306 and formed, and the collar 440 is also by inwardly extruding the material of upper plate-like portion 304 and bottom plate portion 306 towards internal surface 333,333A and formed.Hole surface 442 has external lateral portion 444 and inner side collar portion 446 respectively.Collar portion 446 provides the additional engaging zones 448 between open surface 442 and bail leg 376,378 at hole 370,372 place of upper plate-like portion 304, this bail 374 driven deliver in conveyor belt 16 before strengthen connection between the leg 376,378 of bail and upper plate-like portion 304.In addition, delivered in conveyor belt 16 once bail 374 drives, and the bending outer surface 330A against bottom plate portion 306 in leg end 379,381 of bail, then the additional engaging zones 448 provided by the collar portion 446 of hole 370A, 372A at bottom plate portion 306 strengthens the connection between the leg 376,378 of bail and bottom plate portion 306.

With reference to Figure 21 and Figure 22, be provided for the conveyor belt joints 1011 be joined together the end 1012,1014 of conveyor belt 1016.Fastening piece 1010 can be provided as one group of 1017 fastening piece 1010 side by side, and is fixed on line 1019, so that by one of this group 1017 fastening piece end 1012,1014 navigating to conveyor belt 1016.Fastening piece 1010 has the many advantages being similar to fastening piece 1 and 300 advantage.Should be understood that, be applicable to the similar characteristics of fastening piece 1,300 relative to the feature of fastening piece 1010 discussion, vice versa.

Fastening piece 1010 has annulus 1020, and this annulus extends around the joint pin 1022 of joints 1011 and engages each other with the annulus 1020 of the fastening piece 1010 on the opposed end 1012,1014 of conveyor belt 1016.Each fastening piece 1010 has main body 1024, and it has upper plate-like portion 1030 and bottom plate portion 1032 to be clamped in therebetween one of end 1012,1014 of conveyor belt.Described annulus 1020 has arcuate structure, to extend around joint pin 1022 and to connect upper plate-like portion 1030 and bottom plate portion 1032.Main body 1024 can be made up (see Figure 38) of the elongate strips 1200 of the blank material of cold forming, such as cold rolling or cold drawn steel, makes main body 1024 very rigidity and durable.Because main body 1024 and annulus 1020 thereof are made up of cold rolling or cold drawn material, therefore annulus 1020 is very thick and durable, and does not need extra process or independent manufacturing step to build ring thickness.

With reference to Figure 23, Figure 27 and Figure 28, fastener body 1024 has the cross section of the change in a lateral direction striding across upper plate-like portion 1030 and bottom plate portion 1032, is included in the thickness of the change of its outer surface and internal surface 1050,1054 and the upper plate-like portion 1030 extended between 1050A, 1054A and bottom plate portion 1032.The cross section of the change of fastener body 1024 is included in the thicker beam part 1040 (see Figure 34) of longitudinal extension between outboard end part 1090,1090A and the web part 1042 reduced from beam part 1040 at the thickness that side direction extends at upper plate-like portion 1030 and bottom plate portion 1032 place, 1042A.Beam part 1040 is included in the upper part 1039 at upper plate-like portion 1030 and bottom plate portion 1032 place and low portion 1039A (see Figure 25) and beam part 1040 and is also included in annulus 1020 in the middle of upper part 1039 and low portion 1039A.Beam part 1040 has the cross section of getting laterally across it respectively, and this cross section is uniform substantially for the length of the beam part 1040 between the outboard end part 1090,1090A of main body 1024.As shown in Figure 25, beam part 1040 also has the thickness 1041 (see Figure 25) of the substantial constant on the whole comprising annulus 1020 and upper plate-like portion 1039 and bottom plate portion 1039A, makes beam part 1040 provide rigid construction to resist the load applied in conveyor belt operation period.

With reference to Figure 23 and Figure 27, the upper part 1039 of beam part 1040 comprises concave wall 1044,1046,1048, and web part 1042 comprises tabular section 1051,1052,1053, described tabular section 1051,1052,1053 has the paired hole 1069,1071 formed wherein.Tabular section 1051,1052,1053 has the thickness of reduction relative to upper plate-like portion 1030 at concave wall 1044,1046,1048 place.Tabular section 1051,1052,1053 longitudinally has the thickness of substantial constant along described upper plate-like portion 1030.The thickness intention of this substantial constant comprises the partial deviations in tabular section 1051,1052,1053 being centered around the hole 1069,1071 formed in tabular section 1051,1052,1053.At low portion 1039A place, beam part 1040 has its concave wall 1044A, 1046A, 1048A, and web part 1042 is included in tabular section 1051A, 1052A, the 1053A of side extending between wall 1044A, 1046A, 1048A, its mesopore 1069A, 1071A are formed in tabular section 1051A, 1052A, 1053A.

Upper plate-like portion 1030 has the one or more attachment members be assembled in advance on it, such as rivet or bail 1070, and it is configured to easily to drive delivers in conveyor belt end 1012,1014 and is fixed to the upper by fastening piece 1010.Bail 1070 has the leg 1074,1076 of curved part 1072 and pendency, and described leg 1074,1076 is press-fitted in the paired hole 1069,1071 in tabular section 1051,1052,1053 between concave wall 1044,1046,1048.Bail 1070 is driven deliver in one of conveyor belt end 1012,1014 and bail curved part 1072 is settled against tabular section 1051,1052,1053 between concave wall 1044,1046,1048.Because concave wall 1044,1046,1048 is along the opposite side longitudinal extension of bail curved part 1072, concave wall 1044,1046,1048 is at conveyor belt operation period protection bail curved part 1072.Such as, concave wall 1044,1046,1048 reduces the material or conveyor blade breaks down carried or the possibility be trapped on bail curved part 1072.With reference to Figure 23 and Figure 27, concave wall 1044,1046,1048 can be greater than the thickness of bail curved part 1072 from the vertical outward extending distance of the outer surface 1050 of upper plate-like portion.This makes concave wall 1044,1046,1048 higher than bail curved part 1072, makes conveyor blade will collide concave wall 1044,1046,1048 instead of bail curved part 1072, thus reduces the wearing and tearing to bail curved part 1072.Similarly, the concave wall 1044A of bottom plate portion 1032, the outward extending distance of 1046A, 1048A can be greater than bail leg end 1080,1082, make roller of conveyer belt or idle pulley will collide concave wall 1044A, 1046A, 1048A instead of bail end 1080,1082.

With reference to Figure 22 and Figure 23, the hole 1069,1071 in the tabular section 1051,1052,1053 of upper plate-like portion 1030 is aimed at hole 1069A, the 1071A in tabular section 1051A, 1052A, 1053A of bottom plate portion 1032.Bail 1070 is driven the hole 1069,1071 delivered in conveyor belt end 1012,1014 and make bail leg 1074,1076 be advanced through upper plate-like portion 1030, by conveyor belt end 1012,1014, and pass through hole 1069A, 1071A of bottom plate portion 1032.With reference to Figure 26, the flexible outer surface 1050A against bottom plate portion 1052 in end 1080,1082 of bail leg 1074,1076, to be fixed to upper plate-like portion 1030 and bottom plate portion 1032 by bail 1070.The curved part 1072 of bail 1070 is received within the path 10 73 (see Figure 27) between concave wall 1044,1046,1048, and the end 1080,1082 of the leg 1074,1076 of bail is received within the concave wall 1044A of bottom plate portion 1032, the path 10 73A interior (see Figure 28) between 1046A, 1048A.Therefore; the concave wall 1044,1046,1048 of upper plate-like portion 1030 is along bail curved part 1072 longitudinal extension and protect bail curved part 1072, simultaneously the concave wall 1044A of bottom plate portion 1032,1046A, 1048A along bail leg end 1080,1082 longitudinal extension and protect the leg end 1080,1082 of bail.

With reference to Figure 27 and Figure 28, upper plate-like portion 1030 and bottom plate portion 1032 have and stride across upper plate-like portion 1030 and bottom plate portion 1032 in side direction from the inner bulge flank 1056,1058,1060 of outside concave wall 1044,1046,1048 and 1044A, 1046A, 1048A skew and 1056A, 1058A, 1060A.Flank 1056,1058,1060 and 1056A, 1058A, 1060A are snapped in conveyor belt end 1012,1014, increase grip strength when being clamped in strap end portion 1012,1014 with convenient upper plate-like portion 1030 and bottom plate portion 1032.

Because staple body 1024 and upper plate-like portion 1030 thereof and bottom plate portion 1032 are made from the elongate strips 1200 with outside concave wall 1044,1046, the 1048 and inner bulge flank 1056,1058,1060 (see Figure 38) formed wherein; be different from some existing fastening pieces, upper plate-like portion 1030 and bottom plate portion 1032 need not be bent or be out of shape to produce the cross section of protection bail curved part 1072 and leg end 1080,1082.For simplicity, use label 1044,1046,1048 and 1056,1058,1060 marks by the wall of band 1200 and flank, is similar to the label for the wall and flank marking upper plate-like portion 30.But should be understood that outer wall 1044A, 1046A, 1048A on bottom plate portion 1032 and inner side flank 1056A, 1058A, 1060A have with the respective external wall 1044,1046,1048 of upper plate-like portion 1030 and inner side flank 1056,1058,1060 identical shape and size because upper plate-like portion 1030 and bottom plate portion 1032 are made up of same band 1200.

With reference to Figure 22 and Figure 24, upper plate-like portion 1030 and bottom plate portion 1032 have outboard end part 1090,1090A, and it has the otch 1092 of roughly V-arrangement, 1092A and conical section, the guiding surface 1094 of such as punching press, 1094A.The guiding surface 1094 of punching press, 1094A are formed in the outboard end of wall 1044,1046,1048 (or wall 1044A, 1046A, 1048A), and such as operate as wedge shape part, to engage conveyor blade blade and promoted away from upper plate-like portion 1030 or make bottom plate portion 1032 move on roller of conveyer belt or idle pulley.In addition, the guiding surface 1094 of punching press, the tapered profiles of 1094A provide the outboard end part 1090 of upper plate-like portion 1030 and bottom plate portion 1032, the comparatively low profile of 1090A.Comparatively low profile reduces collision, such as, in the collision that each fastening piece 1010 produces through doctor blade conveyor blade blade hit fastening piece upper plate-like portion 1030.

With reference to Figure 22 and Figure 23, bail 1070 comprises pair of outside bail 1070A, 1070B and inner side bail 1070C, described outside bail 1070A, 1070B and inner side bail 1070C is anisotropically longitudinally-spaced from the inner end 1091 of upper plate-like portion 1030 and bottom plate portion 1032, makes bail 1070A, 1070B, 1070C relative to each other vertical misalignment.More specifically, the leg 1074,1076 of two outside bail 1070A, 1070B compared to the leg 1074,1076 of middle bail 1070C from inner end 1091 spaced apart farther and more closely end 1090,1090A toward the outer side, as shown in Figure 24.By making outside bail 1070A, 1070B locate (see Figure 23) from the inside edge 1091 of upper plate-like portion 1030 and bottom plate portion 1032 further, outside bail 1070A, 1070B move after providing bail 1070A, 1070B to increase in conveyor belt end 1012,1014.Except moving after improvement is provided, the longitudinal direction of bail 1070A, 1070B, 1070C location that interlocks is avoided the bail of straight line pattern to penetrate striding across strap end portion 1012,1014, this can provide raising to run through resistance in some applications, in order to avoid bail 1070A, 1070B, 1070C are pulled out from conveyor belt end 1012,1014.

With reference to Figure 22 and Figure 23, the leg 1074,1076 of bail 1070 can be press-fitted in the hole 1069,1071 in the tabular section 1051,1052,1053 of upper plate-like portion 1030.Once fastening piece 1010 is positioned on conveyor belt end 1012,1014, then the leg 1074,1076 of bail can be driven and send interior by conveyor belt end 1012,1014 and enter in hole 1069A, 1071A of bottom plate portion, the leg 1074,1076 of bail is made to extend through hole 1069,1069A and 1071, the 1071A of aligning, as shown in Figure 26 and Figure 29.

Another advantage of fastening piece 1010 is that upper plate-like portion 1030 and bottom plate portion 1032 have complementary lateral side, and it allows the relative movement of neighbouring fastening piece 1010, protects the outside bail 1070B of fastening piece 1010 simultaneously.With reference to Figure 27, Figure 28, Figure 30 and Figure 31, upper plate-like portion 1030 and the bottom plate portion 1032 of fastening piece have a pair relative lateral side 1120,1122 and 1120A, 1122A respectively.With reference to Figure 30 and Figure 31, upper plate-like portion 1030 has the side direction external lateral portion 1131,1132 at its outer side surface 1120,1122 place, and it has corresponding profile to allow side direction external lateral portion 1131,1132 closely locate with the upper plate-like portion 1030 of neighbouring fastening piece 1010 or engage.The bottom plate portion 1032 of fastening piece 1010A, 1010B, 1010C has side direction external lateral portion 1131A, 1132A (see Figure 28) similarly, and its profile had is suitable for allowing external lateral portion 1131A, 1132A of side direction closely locate with the bottom plate portion 1032 of neighbouring fastening piece 1010 or engage.

With reference to Figure 36, fastening piece 1010A, 1010B, 1010C and 1010D are fixed to conveyor belt end 1012 and have the annulus 1020 (see Figure 21) that the joint pin 1022 around conveyor belt joints 1011 extends.In the operating process of conveyor belt, conveyor belt 1016 can have into groove shape due to the weight of carried material, and can be supported by carrying roller 1135 as shown in Figure 37.With reference to Figure 33, when conveyor belt 1016 grooving, fastening piece 1010A, 1010B are pivoted to position 1010A ' shown in broken lines in fig. 33 and 1010B '.If the side direction part 1131,1132 with profile contacts with each other, then the profile of side direction part 1131,1132 provides abutment face 1134, and it allows side direction part 1131,1132 against relative movement each other.Because fastener body 1024 and upper plate-like portion 1030 thereof and bottom plate portion 1032 are made (see Figure 38) from the elongate strips 1200 of cold-worked material, the profile that band 1200 has side direction part 1131,1132 and formed thereon.Therefore, bending or the process that there is no need to perform further upper plate-like portion 1030 and bottom plate portion 1032 provides the profile of side direction part 1131,1132 and 1131A, 1132A, because once fastener body 1024 is separated from elongate strips 1200, then upper plate-like portion 1030 and bottom plate portion 1032 just have side direction external lateral portion 1131,1132 and 1131A, 1132A.

At lateral side 1120,1120A place (see Figure 27 and 28), upper plate-like portion 1030 and bottom plate portion 1032 have wall 1044,1044A, the curved part 1072 of its protection outside bail 1070A and end 1080,1082.At relative lateral side 1122,1122A place, the tabular section 1053 of upper plate-like portion 1030 and bottom plate portion 1032,1053A comprise projection 1130,1130A, and it has the hole 1069,1071 and 1069A, 1071A that are formed in wherein.Because the vertical height that projection 1130,1130A have is shorter than wall 1044,1044A, projection 1130,1130A provide gap 1133 (see Figure 31), so that the wall 1044 of the neighbouring fastening piece 1010 of permission, 1044A tilt in gap 1133.The lateral side 1120,1122 of neighbouring fastening piece 1010 and this between 1120A, 1122A coordinate the wide-angle near permission between fastening piece 1122A hinged, and lateral side 1120,1122 and 1120A, 1122A can not abut and restrict the motion of fastening piece 1010.

With reference to Figure 27, Figure 28 and Figure 33, outside bail 1070B has leg 1074,1076, so that hole 1069A, the 1071A in the projection 1130A of the hole 1069,1071 extended through in the projection 1130 of upper plate-like portion 1030 and bottom plate portion 1032.Although the curved part 1072 of wall 1044,1044A protection outside bail 1070A and leg end 1080,1082, the curved part 1072 of outside bail 1070B and leg end 1080,1082 are in side direction expose at lateral side 1122,1122A.But; with reference to Figure 33; because fastening piece 1010A, 1010B are fixed to conveyor belt end 1012,1014; the outer wall 1044 of fastening piece 1010B protects the curved part 1072 of the bail 1070B on the top projection 1130 of fastening piece 1010A in side direction, and the outer wall 1044A (see Figure 28) of fastening piece 1010B protects the leg end 1080,1082 of the outside bail 1070B on the bottom projection 1130A of fastening piece 1010A in side direction.Therefore, fastening piece 1010A, 1010B coordinate, and allow relative movement betwixt with the grooving by conveyor belt 1016, continue the outside bail 1070B of protection fastening piece 1010A simultaneously.

With reference to Figure 30, side direction external lateral portion 1131 comprises vertical surface 1140, and it has the incline section 1142 tapered inwardly in side direction with angle 1144.Angle 1144 can in the scope of about 2 degree to about 15 degree, all 6 degree according to appointment.Because incline section 1142 tapers inwardly in side direction, incline section 1142 provides gap 1145 that vertical surface 1140 can be moved (see Figure 33) relative to neighbouring fastening piece 1010.With reference to Figure 31, side direction external lateral portion 1132 can have vertical surface 1160, and it has the profile being different from side direction external lateral portion 1131.Such as, vertical surface 1160 can have roughly straight part 1162, and its internal surface 1054 being basically perpendicular to upper plate-like portion 1030 extends (see Figure 24).Because surface 1160 is substantially perpendicular to lower surface 1054; surface 1160 allows projection 1130 and the bail curved part 1072 on it closely to place relative to the wall 1044 of neighbouring upper plate-like portion 1030, to protect bail curved part 1072 to greatest extent.Similarly; the surperficial 1160A (see Figure 32) of the projection 1130A of bottom plate portion 1032 is substantially perpendicular to internal surface 1054A; and allow projection 1131A and the bail leg end 1080,1082 on it closely to place relative to the wall 1044 of neighbouring bottom plate portion 1032, to protect the leg end 1080,1082 of bail to greatest extent.With reference to Figure 31 and Figure 32, vertical surface 1160,1160A comprise chamfering 1164,1166, and it is provided for the hinged neighbouring outer wall 1044 of fastening piece 1010, the gap of 1044A.

Side direction external lateral portion 1131,1132 and 1131A, 1132A can have the profile being different from shown in Figure 27 and Figure 28 those.Such as, side direction external lateral portion 1131,1132 can have the profile of protrusion, to allow the side direction part 1131,1132 of adjacent upper plate-like portion 1030 against rolling each other during convenient conveyor belt 1012 grooving.As another example, one in described side direction part 1131,1132 can have recessed profile, and another side direction part can have the protrusion profile of coupling, to provide the more controlled pivot movement of the adjacent upper plate portion 1030 of the fastening piece 1010 that is associated.

As discussed above like that, the main body 1024 of fastening piece 1010 can be formed (see Figure 38) by the single elongate strips 1200 of cold worked blank material, such as cold rolling or cold drawn steel.Band 1200 comprise upper plate-like portion 1030 and bottom plate portion 1032 feature whole band 1200 length 1202 on there is uniform cross section.Particularly, the cross section of band 1200 comprises the concave wall 1044,1046,1048 extended from the outer surface 1050 of band 1200 and the flank 1056,1058,1060 extended from the internal surface 1054 of band 1200.Because wall 1044,1046,1048 and flank 1056,1058,1060 extend in the length 1202 of band 1200, therefore main body 1024 also has the wall 1044,1046,1048 and flank 1056,1058,1060 that above extend in the length 1170 (see Figure 34) of main body 1024, except except window 1210 place (see Figure 34), wherein interrupt along main body 1024 at window 1210 place flank 1056,1058,1060.Therefore, when plate portion 1030,1032 is still band 1200 a part of, wall 1044,1046,1048 and flank 1056,1058,1060 Already in upper plate-like portion 1030 and bottom plate portion 1032, and does not need the independent shaping operation on upper plate-like portion 1030 and bottom plate portion 1032.

In band 1200, the cross section of band 1200 is formed by cold rolling or cold drawn band 1200.Such as, because band 1200 starts can be used as the line with circular cross-section.Line is advanced through a series of roll to form the material bands with rectangular cross-section.Material bands can by cold rolling to be formed into concave wall 1044,1046,1048 and flank 1056,1058,1060 in band 1200.Except being formed in required cross section except in band 1200, cold-rolled process is owing to carrying out cold working and the steel that significantly harden to material.Therefore, when main body 1024 remains band 1200 a part of, due to cold rolling band 1200 to form the cross section needed for it, the annulus 1020 of main body 1024 and upper plate-like portion 1030 and bottom plate portion 1032 very hard.Compared to some existing fastening piece manufacturing technologies, annulus 1020 and upper part 1030 and low portion 1032 do not need process further to increase their intensity.

The length 1202 of band 1200 may be the manyfold (see Figure 34) of main body 1024 length 1170 at first, and such as can be stored on a large spool.A part for band 1200 can be advanced from spool, and is longitudinally advanced through processing equipment to form a series of fastener body 1024 from band 1200, as by discussing in more detail below.Because elongate strips 1200 has the required sectional shape formed wherein, do not need to comprise for the manufacture of the manufacturing facility of fastening piece 1010 perform independent manufacturing step to build the machinery of annulus 1020 and upper plate-like portion 1030 and bottom plate portion 1032 thickness as required in some existing fastening piece manufacture process.

With reference to Figure 34, illustrate once fastener body 1024 and formed from elongate strips 1200, the plan view of fastener body 1024.Although nearly all feature of fastener body 1024 is formed wherein, the annulus 1020 of fastener body 1024 is not also bent, and making main body 1024 still be similar to elongate strips 1200 is general planar.In addition, bail 1070 is not also preset in upper plate-like portion 1030 and line 1019 is not also soldered to the internal surface 1054A of bottom plate portion 1032.As can be seen from Figure 34, the concave wall 1044,1046,1048 of upper plate-like portion 1034 is aimed at annulus 1020A, 1020B, the 1020C being connected upper plate-like portion 1030 and bottom plate portion 1032, and with wall 1044A, 1046A of bottom plate portion 1032,1048A aims at further.Because fastener body 1024 is formed by the band 1200 in its whole length 1202 with uniform cross-section, therefore wall 1044,1046,1048, annulus 1020A, 1020B, 1020C and wall 1044A, 1046A, 1048A are continuous print in the whole length 1170 of fastener body 1024.Once annulus 1020 is bent, the wall 1044 then aimed at, 1046,1048,1044A, 1046A, 1048A and annulus 1020A, 1020B, 1020C provide substantially constant thickness 1041 (see Figure 25) the whole fastener body 1024 of the outboard end part 1090A from the outboard end part 1090 of upper plate-like portion to bottom plate portion 1032.

With reference to Figure 34, the tabular section 1051 that thickness reduces, 1051A, 1052,1052A, and 1053,1053A is spaced apart from dividing each other by the window 1210 formed in main body 1024 along the length 1170 of fastener body 1024.Window 1210 is included in window 1210A, 1210B, 1210C of being formed in the more lamellar section 1051,1052,1053 (see Figure 38) of band 1200, thicker wall 1044,1046,1048 in remaining band 1200 limits annulus 1020A, 1020B of fastener body 1024,1020C.By by the more lamellar section 1051,1052 of material from band 1200,1053 remove remaining annulus 1020A, 1020B, 1020C, and window 1210A, 1210B, 1210C provide gap to the annulus 1020 of the fastening piece 1010 being connected to relative conveyor belt end 1012,1014.In other form of fastening piece 1010, fastener body 1024 can not have the window 1210 formed wherein.Such as, fastening piece 1010 can be the single staple fasteners with fastener body 1024, and wherein the web part that reduces of not interrupted thickness is extending between a pair beam part of another outboard end from an outboard end of fastener body.In another kind of scheme, fastener body can be in internal strain in side direction at annular portion, to reduce the width of fastener body in annulus office, thus provides gap to the annulus of adjacent fastener, and is not got on to remove from fastener body by material.

With reference to Figure 35, provide the worm's eye view of fastener body 24, it is similar to Figure 34, and difference is that Figure 35 is worm's eye view and Figure 34 is plan view.Flank 1056,1058,1060 extends internally from the internal surface 1054 of upper plate-like portion 1030, and flank 1056A, 1058A, 1060A extend internally from the internal surface 1054A of bottom plate portion 1032.Once annulus 1020 has been bent and upper plate-like portion 1030 and bottom plate portion 1032 are clamped on conveyor belt section 1012,1014, then flank 1056,1058,1060,1056A, 1058A, 1060A be snapped in conveyor belt end 1012,1014.Flank 1056,1058,1060, the occlusion of 1056A, 1058A, 1060A strengthens the clamping to conveyor belt end 1012,1014 of upper plate-like portion 1030 and bottom plate portion 1032.

As shown in Figure 35, flank 1056,1058,1060,1056A, 1058A, 1060A longitudinally aim at hole 1069,1071 and 1069A, 1071A, and from annulus 1020A, 1020B, 1020C laterally offset.By by flank 1056,1058,1060,1056A, 1058A, 1060A and hole 1069,1071,1069A, 1071A aim at, flank 1056,1058,1060,1056A, 1058A, 1060A provide surrounding hole 1069,1071, the additional materials of 1069A, 1071A the join strength strengthened between upper plate-like portion 1030 and bottom plate portion 1032 and bail leg 1074,1076.By by flank 1056,1058,1060 from annulus 1020 lateral register, because the flank 1056,1058,1060 extended between upper plate-like portion 1030 and bottom plate portion 1032 when forming window 1210A, 1210B, 1210C is removed, the resistance that annulus 1020 is bending in the fabrication process can be reduced.

With reference to Figure 38 and Figure 39, provide the method 1199 manufacturing fastening piece 1010, it comprises pushing away and makes band 1200 longitudinally be advanced through processing equipment to form fastening piece 1010.At first, provide band 1200, the length 1202 that it has can be greater than the length of fastener body 1024.Band 1200 can have to be had along its long multiple sections along its length 12, Application way 200 is sequentially prepared the main body 1024 of fastening piece 1010 from described section.Below discuss the operation 1226,1230 being advanced through method 1199 according to a band section 1200A at it, 1250,1260,1270 and 1280 carry out.

In a kind of scheme, band 1200 provides from the coiled material 1220 rotated in direction 1222, to make band 1200 loose winding on longitudinal direction 1224.Web material 1220 can be cold rolling or cold drawn steel, and its mesospore 1044,1046,1048 and flank 1056,1058,1060 are within it formed, as shown in Figure 38.Because band 1200 is arranged on coiled material 1220, the width 1205 that band 1200 has in the scope of about 0.8 inch to about 0.9 inch, such as 0.84 inch, and the length 1202 had such as is greater than ten feet, is greater than 50 feet, or be greater than 100 feet.Therefore the length 1202 that has of the length of band 1200 can much larger than the length 1170 of fastener body 1024, length 1170 in the scope of about 3 inches to about 7 inches, all 5 inches according to appointment.

Band 1200 is advanced on longitudinal direction 1224, until band section 1200A arrives punching operation 1226.At punching operation 1226 place, window 1210 is formed in band section 1200A, such as removes 1228 windows 1210 by punching press.Because band 1200 comprises wall 1044,1048,1046 and flank 1056,1058,1060, these features are arriving when operation (punch-outoperation) 1228 is removed in punching press Already in strip portion 1200A.Window 1210 is removed the part (see Figure 38) of the part 1051,1052,1053 of the thickness reduction of 1228 band section 1200A and is formed in band section 1200A by punching press, and remaining wall 1044,1046,1048 extends along band section 1200A.Because window 1210 is formed in band section 1200A, the upper plate-like portion 1030 of band section 1200A is separated with bottom plate portion 1032 by window 1210 usually.Punching operation 1226 can use in the hydraulic operation punch press with drift and mould and perform.In other scheme, window 1210 can such as use laser beam cutting or electric discharge processing (electricaldischargemachining) to be formed.

Next, band section 1200A advances to the punching operation 1230 comprising punching press and punch operation 1242 on longitudinal direction 1224.At punching press and punch operation 1242 place, drift is used to clash into the wall 1044,1046,1048 of upper plate-like portion 1030 and wall 1044A, 1046A, 1048A of bottom plate portion 1032, to be formed into guiding surface 1094, the 1094A (see Figure 34) of taper thereon.

Punching press and punch operation 1242 also comprise use drift and in the upper plate-like portion 1030 of band section 1200A, form three pairs of holes 1069,1071 and form three couples of holes 1069A, 1071A in the bottom plate portion 1032 of band section 1200A.While formation hole 1069,1071 and 1069A, 1071A, drift by the material of upper plate-like portion 1030 and bottom plate portion 1032 towards supporting upper plate-like portion 1030 and bottom plate portion 1032 internal surface 1054, the mould of 1054A extrudes.This material of extruding is formed around the upper each hole of internal surface 1054,1054A 1069,1071, the protruding collar 1063 (see Figure 29 and Figure 32) of 1069A, 1071A.The protruding collar 1063 provides extra intensity to the connection between upper plate-like portion 1030 and the leg 1074,1076 of bottom plate portion 1032 and bail, as above relative to the engaging zones 448 in above-mentioned Figure 16 discuss.

Band section 1200A advances to punching operation 1250 on longitudinal direction 1224, and it comprises the outboard end part 1090, the 1090A that use cutting and punching press 1252 to carry out refine band section 1200A.Cutting and punching operation 1252 comprise the otch 1092, the 1092A (see Figure 35) that use one or more drift in the outboard end part 1090,1090A of band section 1200A, form roughly V-arrangement.

As shown in Figure 39, in band 1200, form V-notch 1092, the operation of 1092A comprises and being removed by the midfeather 1048,1048A of material from upper plate-like portion 1030 and bottom plate portion 1032.Because this material is removed, can be removed in a part of the preformed punching press guiding surface 1094 in operation 1242 place, 1094A.Operation 1252 can be included in outer ledge 1090,1090A place performs the additional punch 1048A of midfeather 1048 again to form guiding surface 1094, the 1094A of punching press on wall 1048,1048A.

Next, band section 1200A is longitudinally travelled lock out operation 1260 on direction 1224, and strip portion 1200A can remove from band 1200 by it.Due to prior operation 1226,1230,1250 morphogenesis characters in strip portion 1200A, strip portion 1200A is separated from band 1200 fastener body 1024 that 1260 generations can be used for shown in Figure 34 and Figure 35 assembles fastening piece 1010.In one form, lock out operation 1260 comprises and band 1200 is striden across its width and shear 1262, to be separated with bottom plate portion 1032 by the upper plate-like portion 1030 of connected band section.Band section is one after the other separated from vertical progressive band 1200 by shear history 1262.The fastener body 1024 of gained can be collected and carry (according to priority or after the multiple main body 1024 of accumulation) forms operation 1270 to annular portion.

Main body 1024 from band 1200 cut off after, fastener body 1024 enter into the flat structures shown in Figure 34 and Figure 35 annulus formed operation 1270.Form operation 1270 place at annulus, the annulus 1020 bending 1272 of fastener body 1024 is to required curvature.The annulus 1020 of each fastener body 1024 is bent 1272, until upper plate-like portion 1030 and bottom plate portion 1032 are in the relation that required perpendicular separation is opened, wherein between upper plate-like portion 1030 and bottom plate portion 1032, there is gap 1290, as shown in Figure 22.In the structure that this is open, fastener body 1024 has been ready to conveyor belt end 1012,1014 to be received between upper plate-like portion 1030 and bottom plate portion 1032.

Then fastener body 1024 advances to assembly operation 1280 fastener body 1010 to be assembled into together in band 1017 and to be fixed to the upper by bail 1070.Such as, assembly operation 1280 can comprise line and connect and bail update 1282, and it comprises on the internal surface 1054A of 1032 of the bottom plate portion welding or be otherwise fixed to by line 1019 fastener body 1024, as shown in Figure 22.Operation 1282 also can comprise and being inserted in the hole 1069,1071 of upper plate-like portion 1030 by the leg 1074,1076 of bail 1070.Leg 1074,1076 is press-fitted in hole 1069,1071, and this keeps bail 1070 to be fixed on upper plate-like portion 1030 in process fastening piece group 1017 being carried and is assembled into conveyor belt end 1012,1014.

In one form, the processing equipment for manner of execution 1199 comprises one or more Presseshydraulic, and it has drift and mould, and it is configured to executable operations 1226,1230,1250,1260,1270 on band section 1200A.No matter be use one or multiple punch press, the tonnage of each punch press can be less than 150 tons, respectively even less than 100 tons.This tonnage is less than the tonnage of conventional fastening piece manufacturing process, in the fastening piece manufacturing process of routine, wherein needs the punch press more than 200 tons to build or changes the cross section of fastening piece annulus, have more rigidity to make the annulus of these conventional fasteners.Thus method 1199 can use less punch press, because the annulus 1020 of fastener body 1024 is removed by the tabular section 1051,1052,1053 reduced from thickness by material instead of built or the cross section that changes annulus 1020 is formed, in the manufacturing process of conventional fasteners, this is often the operation of the highest tonnage.The less tonnage punch press that can use together with method 1199 avoids the running cost of the heavier punch press of conventional fasteners manufacturing process and the cost of heavier punch press and maintenance.

Although said method presents with order usually, should be understood that, operation can be modified, combines, remove, or with from present the different order of order and perform.In addition, when not departing from disclosure instruction, additional or less action can be performed under each operation.Such as, although drift above-mentioned for material is removed from band section 183A and 1200A, also can use and comprise laser, boring and/or other scheme mach of discharging removes material.In addition, although be described above punching press (coining) operation, these operate other technical substitution available.Such as, by blade, guiding surface or outer surface 275,275A are cut in corresponding fastener body 2.

With reference to Figure 40, provide another joints 1500 being suitable for conveyor belt 1502, it utilizes fastening piece 1504 to be combined the end 1506,1508 of conveyor belt 1502.Fastening piece 1504 comprises a pair of identical fastener body 1510, and one of them fastener body 1510 is set on outer surface 1512 and another fastener body 1510 is arranged on the internal surface 1514 of conveyor belt end 1506,1508.In the operating process of conveyor belt, the internal surface 1514 of conveyor belt 1502 is towards carrying roller and cylinder (cylinder 350 see in Figure 12), and outer surface 1512 deviates from carrying roller and cylinder.Outer surface 1512 can engage with conveyor blade.In one form, conveyor belt 1502 has the upper journey (toprun) for delivering carried material in a first direction, and the backhaul (returnrun) of advancing in a second opposite direction after advancing around head cylinder.The outer surface 1512 of the upper journey of conveyor belt 1502 is upper surfaces of upper journey, and the internal surface 1512 of upper journey is the lower surface of upper journey.On the contrary, the outer surface 1512 of the backhaul of conveyor belt 1502 is lower surfaces of backhaul, and the internal surface 1512 of backhaul is the upper surface of backhaul.

Fastener body 1510 is similar to the fastener body 320 shown in Figure 19 and Figure 20, and difference is that described fastener body 1510 does not comprise window 311A, 311B, 311C or annulus 308A, 308B, 308C.Because fastening piece body 1510 is arranged on above and below each conveyor belt end 1506,1508, fastening piece 1504 comprises (fastener body 1510 on outer surface 1512) upper plate-like portion 1522 and (fastener body 1510 on internal surface 1514) bottom plate portion 1524 of being clamped to conveyor belt end 1506,1508 therebetween.Upper plate-like portion 1522 and bottom plate portion 1524 are fixed to conveyor belt end 1506,1508 by bail, and the leg of described bail is advanced through the hole 1520 of the aligning in upper and lower fastener body 1510.The curved part of bail is placed in the passage 1530 of top fastener main body 1510, and bail leg is bending against tight bottom fastener body 1510 in its passage 1530.Fastening piece 1504 can be advantageous particularly in the conveyor application using large diameter head cylinder and idle pulley, and wherein in above-mentioned application, joints 1500 does not need to provide hinge movement to advance to allow conveyor belt 1502 around head cylinder and idle pulley.

With reference to Figure 41 and Figure 42, provide another fastening piece 1600, it is similar to fastening piece 1 discussed above in many aspects.Described fastening piece 1600 has main body 1602, and it has the upper plate-like portion 1604 and bottom plate portion 1606 that are connected by curved hinge annulus 1610.Upper plate-like portion 1604 and bottom plate portion 1606 comprise projection 1640,1640A, it has projection or upright outer wall 1622,1622A, additional materials is provided in the side direction outer lateral side of upper plate-like portion 1604 and bottom plate portion 1606 by described wall, makes side direction outer lateral side thicken on the remainder of adjacent projection or expand.The intensity of this additional materials increase projection 1640,1640A and rigidity, and improve its operation period at conveyor belt to resistant to bending ability.

Described fastening piece 1600 comprises two bail (not shown), and it has the leg be press fit in the hole 1612 of upper plate-like portion 1604.The leg of bail can be driven to be sent by conveyor belt, enters in the hole 1614 of bottom plate portion 1606, and bending is against bottom plate portion 1606.With reference to Figure 42, upper plate-like portion 1604 comprises outer surface 1620, and its mesospore 1622,1624,1626 stretches out from outer surface 1620.Upper plate-like portion 1604 has the inner side flank 1630,1636,1638 aimed at wall 1622,1624,1626.Be similar to upper plate-like portion 1604, bottom plate portion 1606 has outer surface 1620A, and its mesospore 1622A, 1624A, 1626A stretch out from it and inner side flank 1630A, 1636A, 1638A aim at wall 1622A, 1624A, 1626A.

Wall 1622,1622A respectively to extension to have the height 1642 for recording from the outer surface 1620 of upper plate-like portion 1604 and bottom plate portion 1606,1620A.Height 1642 can be less than the wall 1626 of adjacent fastener 1600, the height of 1626A to provide the gap being convenient to adjacent fastener pivotable when conveyor belt grooving, such as shown in Figure 33.At upper plate-like portion 1604 place, wall 1622 and wall 1624 form the recess 1644 receiving bail curved part.At bottom plate portion 1606 place, wall 1622A and wall 1624A forms the recess 1644A receiving bail leg.After the leg of bail has been sent by conveyor belt by driving and entered in the hole 1614 of bottom plate portion 1606, the leg curvature of bail is in passage 1644A.

Wall 1622,1622A can operate and think that the curved part of the bail be associated with projection 1644,1644A and leg provide further protection together with wall 1624,1624A.Whether wall 1622,1622A provide further protection and are arranged on the outer surface of conveyor belt end regardless of upper plate-like portion 1604 or bottom plate portion 1606 to the curved part of bail and leg.Because on the outer surface of any one the be arranged on conveyor belt end in upper plate-like portion 1604 or bottom plate portion 1606, be installed to by fastening piece 1600 in the process of conveyor belt end, fastening piece 1600 provides extra flexibility.

Such as, be installed on the outer surface of conveyor belt end by upper plate-like portion 1604, then fastening piece 1600 can be installed on conveyor belt end on standard orientation.Under this standard orientation, the curved part being received within the bail on projection 1644 will be presented to being with the conveyor blade that strikes off, and wall 1622,1624 instead of bail curved part Absorbable rod carry impact and the wearing and tearing of scraper.Because fastening piece 1600 is installed under standard orientation, bottom plate portion 1606 will be arranged on the internal surface of conveyor belt.The internal surface of conveyor belt can be supported by steel carrying roller, makes the bail leg on bottom plate portion 1606 and projection 1644A will be presented to steel carrying roller.Wall 1622A and 1624A instead of the bail leg Absorbable rod on projection 1644A are from the impact of these steel carrying rollers and wearing and tearing.

Fastening piece 1600 can inverted orientation be arranged on conveyor belt end, wherein bottom plate portion 1606 be arranged on conveyor belt end outer surface on and upper plate-like portion 1604 be arranged on the internal surface of conveyor belt end.Under this inverted orientation, the end of the bail leg of wall 1622A, 1624A protection on projection 1644A, avoids the impact that causes owing to contacting with the conveyor blade struck off the outer surface of conveyor belt and wearing and tearing.Bail curved part on projection 1644 protected by wall 1622,1624, avoids the impact that causes owing to contacting with the steel carrying roller of support belt internal surface and wearing and tearing.Wall 1622,1622A thus provide further protection to the bail that is associated with projection 1640,1640A, and no matter whether fastening piece 1600 is fixed to conveyor belt with standard orientation or inverted orientation.Should be understood that, other fastening piece discussed above any one in standard orientation or inverted orientation can be fixed to conveyor belt end.

Although illustrate and describe specific embodiments of the invention, but should be understood that, many changes and modification can be carried out to those skilled in the art, and intention contains all these change and modification of falling in connotation of the present invention and scope in the appended claims.

Claims

1. a conveyor belt fastening piece, for being stitched together the end of conveyor belt, described conveyor belt fastening piece comprises:

Fastener body, it has a pair relative outboard end part;

The elongated beam part of fastener body, it has the length of longitudinal extension between end part outside, its central sill part have stride across elongated beam part along the roughly uniform cross section of beam partial-length;

The upper part of beam part, low portion, and curved annular part, wherein curved annular part is arranged in the middle of upper part and low portion along beam part, and bends to and make upper part above low portion, be orientated to spaced apart at gaps betwixt;

Fastener body in the web part of the upper part place of beam part from beam part side extending and the low portion in the beam part web part from beam part side extending, wherein web part has the thickness of reduction relative to described beam part, and the web part making upper part adjacent relative to side direction with low portion is protruding; And

Hole in the web part that thickness reduces; it is from the laterally offset of beam part and be sized to receiving attachment members; upper part and the low portion of the projection along attachment members extension of its central sill part are received within the hole of the web part that thickness reduces, to provide protection to it.

2. conveyor belt fastening piece according to claim 1, it is characterized in that, described fastener body comprises another elongated beam part, described elongated beam part by the web part of fastener body in side direction from being spaced apart from each other, and each beam part has the length of longitudinal extension between end part outside and the length uniform cross section substantially along beam part.

3. conveyor belt fastening piece according to claim 2, is characterized in that, described fastener body is included between beam part and extends and the microscler pass through openings of the web part separation reduced by thickness.

4. conveyor belt fastening piece according to claim 1, it is characterized in that, described fastener body comprises two other elongated beam part, and three of fastener body elongated beam parts in side direction from being spaced apart from each other, and each beam part has the length of longitudinal extension between end part outside and the length uniform cross section substantially along beam part.

5. conveyor belt fastening piece according to claim 1, it is characterized in that, the web part that described thickness reduces comprise towards conveyor belt internal surface and deviate from the outer surface of conveyor belt, and the upper part of described beam part and low portion comprise the wall section of the adjacent external surfaces projection of the web part reduced relative to thickness.

6. conveyor belt fastening piece according to claim 5, is characterized in that, the upper part of described beam part and low portion comprise the flank of the adjacent inner surface projection of the web part reduced relative to thickness.

7. conveyor belt fastening piece according to claim 1, it is characterized in that, described hole is included in the paired hole in the web part of described thickness reduction, and attachment members comprises bail, described bail has the Leg portion in the hole pairs of the web part of the thickness reduction being preset in upper part place.

8. conveyor belt fastening piece according to claim 1, it is characterized in that, the web part reduced at the described thickness at the upper part of beam part and low portion place comprises projection outside side direction, and wherein each projection has lateral vertical surfaces outside the internal surface of conveyor belt and the outer surface deviating from conveyor belt and the side direction extended between upper surface and lower surface.

9. conveyor belt fastening piece according to claim 8, is characterized in that, the lateral vertical surfaces of each projection toward the outside from the internal surface of described projection extends and tapers inwardly in side direction in surface along with vertical surface.

10. conveyor belt fastening piece according to claim 1, is characterized in that, described fastener body comprises the pass through openings of the web part separation reduced by thickness along fastener body.

11. for the tabular fastening piece of conveyor belt, and described tabular fastening piece comprises:

Upper plate-like portion and bottom plate portion, each plate portion has the outer surface that deviates from band and the internal surface for splicing tpae;

The plate portion of outer surface and internal surface side extending is striden across, the vicissitudinous thickness of described plate portion tool between outer surface and internal surface;

For plate portion being connected at least one attachment members of conveyor belt end;

At attachment members either side place away from band upper plate-like portion outwardly and the outer surface wall of bottom plate portion;

The internal surface flank inwardly given prominence to towards described band of upper plate-like portion and bottom plate portion, wherein said internal surface flank is vertically aimed at outer surface wall and from least one attachment members laterally offset described; And

The tabular section of side extending between the wall aimed at and flank, this tabular section has the thickness that thickness is less than the wall of aligning and the substantial constant of flank.

12. tabular fastening pieces according to claim 11, it is characterized in that, described tabular fastening piece comprises the annulus longitudinally aimed at outer surface wall and internal surface flank, wherein annulus and vertically aligned wall and flank have the same thickness being greater than tabular section thickness, to provide high intensity to annulus.

13. tabular fastening pieces according to claim 11, it is characterized in that, described plate portion comprises outer ledge and inside edge, and wherein flank extends between edge; And

Annulus is formed continuously with the wall aimed at and flank, extends beyond the inside edge of plate portion.

14. tabular fastening pieces according to claim 11, it is characterized in that, described plate portion has the hole of aligning and described attachment members comprises the shank extending through hole, wherein plate portion is clamped to and brings, and hole and being sized to of shank of bottom plate portion provide press fit betwixt.

15. tabular fastening pieces according to claim 11, is characterized in that, at least one attachment members described comprises multiple bail, and each bail has machine-direction oriented Leg portion, and wherein adjacent bail is from vertical misalignment each other.

16. tabular fastening pieces according to claim 11, it is characterized in that, described upper plate-like portion has the hole being suitable for bail Leg portion, and multiple bail comprises three bails be press-fitted in the hole defaulting to the upper plate-like portion on it, and comprise bail and middle bail outside side direction, described middle bail, in the vertical closer to the end edge skew of band, makes outside bail provide more than middle bail and moves, to increase the confining force of fastening piece.

17. tabular fastening pieces according to claim 11, it is characterized in that, described plate portion has isolated side surface in side direction, described side surface non-linearly extends between the outer surface and internal surface of plate portion, to allow when band grooving, adjacent tabular moieties into close interval on tape or contact and pivotable.

18. tabular fastening pieces according to claim 11, is characterized in that, at least one attachment members described comprises multiple bail, and each bail has a pair Leg portion; And

The hole of the tabular section of upper plate-like portion has the bail leg be press-fitted in wherein, defaults to upper plate-like portion to make bail.

19. tabular fastening pieces according to claim 11, it is characterized in that, described tabular fastening piece comprises another upper plate-like portion and another bottom plate portion further, each plate portion has the outer surface that deviates from band and the internal surface for engaging described band, and strides across the thickness of the change of outer surface and internal surface side extending between outer surface and internal surface; And

Top plate-like body comprises upper plate-like portion and bottom plate-like body comprises bottom plate portion, and wherein top plate-like body and bottom plate-like body are configured to by conveyor belt clamping between which.

20. 1 kinds of swivel hook tabular fastening pieces, for being stitched together conveyor belt end, described swivel hook tabular fastening piece comprises:

The fastener body formed by the rolling blank material with predetermined high hardness level;

The upper plate-like portion of the rolling of main body and bottom plate portion, each plate portion has the section thickness of the change extending laterally across it;

The hole formed in the plate portion of rolling;

At least one attachment members, for extending through hole and by upper plate-like portion and bottom tabular grips to bringing;

The exterior projection of the rolling of plate portion is divided and inner bulge part, and wherein exterior projection divides longitudinal extension on the either side of at least one attachment members, and inner bulge part extends so that clamping band along plate portion; And

The annulus of the rolling of main body, it has the rolling blank material of the predetermined high hardness level for the formation of swivel hook tabular fastening piece, and annulus is formed to have the arcuate structure extended between plate portion from the blank material of rolling.

21. swivel hook tabular fastening pieces according to claim 20, is characterized in that, annulus and the exterior projection of rolling are divided to aim at and divide with exterior projection and extended continuously.

22. swivel hook tabular fastening pieces according to claim 21, it is characterized in that, the exterior projection of rolling is divided and inner bulge part perpendicular alignmnet on plate portion, and the annulus of rolling and vertically aligned exterior projection divide to aim at inner bulge part and with vertically aligned exterior projection divide with inner bulge partial continuous extend, annulus is had at the plate portion identical section thickness of outside convex portion with inner bulge part place.

23. swivel hook tabular fastening pieces according to claim 20, is characterized in that, in the scope of about 95 to about 105 of predetermined high hardness level on Rockwell B scale of the annulus of rolling.

24. swivel hook tabular fastening pieces according to claim 20, is characterized in that, the predetermined high hardness level of the annulus of rolling is about 100 on Rockwell B scale.

25. swivel hook tabular fastening pieces according to claim 20, it is characterized in that, each described plate portion has the outer ledge of punching press, to be provided to the guiding surface of the inclination of plate portion, to reduce the impact force with it.

26. swivel hook tabular fastening pieces according to claim 25, it is characterized in that, described outer ledge has into the roughly V-arrangement configuration of profile, plate portion comprises inside edge, and at least one attachment members comprises from outer ledge isolated outside bail and the middle bail towards inside edge vertical misalignment equably.

27. swivel hook tabular fastening pieces according to claim 20, it is characterized in that, the annulus of rolling comprises at least three annulus.

28. 1 kinds of tabular fastening pieces, for being connected together the end of conveyor belt, described tabular fastening piece comprises:

Three bails, each bail has the curved part of a pair leg and connected legs;

Upper plate-like portion, it has the inside edge extended in side direction arranged for the side extending end of proximity band, and wherein upper plate-like portion is clamped on it by bail;

The three pairs of holes being suitable for bail in upper plate-like portion, each hole wherein in hole pairs is longitudinally aimed at; And

One, the centre of three bails offsets closer to the inside edge of upper plate-like portion in the vertical, the remaining described further away from each other inside edge of two other bail, the leg of outside bail is made to penetrate conveyor belt, than the respective leg portions of middle bail more away from the end of conveyor belt, confining force is maximized.

29. tabular fastening pieces according to claim 28, is characterized in that, described tabular fastening piece is swivel hook tabular fastening piece, and comprise bottom plate portion and connect at least one hinge annulus of upper plate-like portion and bottom plate portion; And

The three pairs of holes being suitable for bail in the plate portion of bottom, it is aimed at the hole pairs in upper plate-like portion.

30. tabular fastening pieces according to claim 28, is characterized in that, the hole of described upper plate-like portion be sized to the leg press fit with bail, default to upper plate-like portion to make bail.

31. tabular fastening pieces according to claim 28; it is characterized in that; the vicissitudinous section thickness of described upper plate-like portion tool; comprise the upstanding wall of the passage in the hole wherein forming upper plate-like portion and the either side longitudinal extension along at least two passages; so that the curved part of corresponding bail is in the channel settled in protection, wherein plate portion is clamped to and brings.

32. tabular fastening pieces according to claim 31, it is characterized in that, upper plate-like portion comprises the flank of pendency, itself and upstanding wall perpendicular alignmnet, to be clamped in band, wherein upper plate-like portion is clamped to and brings.

33. tabular fastening pieces according to claim 32, it is characterized in that, described tabular fastening piece is swivel hook tabular fastening piece and comprises bottom plate portion, its hole had is aimed at the hole of upper plate-like portion; And

Hinge annulus and upstanding wall and the flank aimed at are aimed at, wherein hinge annulus has the section thickness identical with the flank of aligning with wall, to provide the annulus of the thickness compared with the section of the upper plate-like portion comprising described passage with increase.

34. tabular fastening pieces according to claim 31, it is characterized in that, described passage is included in the outer passage that the projection of upper plate-like portion is formed, and it extends to one of and upstanding wall in the lateral side of upper plate-like portion at another lateral side place.

35. tabular fastening pieces according to claim 34, it is characterized in that, described upper plate-like portion has the outer surface that deviates from band and the internal surface for engaging described band, and the vertical surface extended between outer surface and internal surface is in lateral side, the profile that wherein vertical surface has is suitable for allowing adjacent upper plate-like portion to stride across conveyor belt and is attached with the relation of tight spacing or joint, still can relative to each other offset when conveyor belt grooving simultaneously, the curved part of the bail be associated to make the projection matching incompatible protection plate portion adjacent with another at the upstanding wall at the lateral side place of one of adjacent plate portion.

36. 1 kinds of manufactures are suitable for the method for the tabular fastening piece of conveyor belt, and described method comprises:

The material bands of longitudinal extension is made longitudinally to form tabular fastening piece by processing equipment, described material bands has in a lateral direction across the section thickness of the change of band, and the band of the vicissitudinous section thickness of tool comprises at least one passage along band longitudinal extension continuously; And

Formed by the aperture compared with thin material band in the fastening piece plate-like portion office of passage, to allow at least one attachment members of tabular fastening piece to extend through aperture by described processing equipment.

37. methods according to claim 36, is characterized in that, are making before band longitudinally forms tabular fastening piece by processing equipment, and described material bands is by cold rolling or cold drawnly to provide in a lateral direction across the section thickness of the change of band.

38. methods according to claim 36, is characterized in that, at least one passage described comprises the pair of channels along band longitudinal extension continuously; And

Formed and formed by the aperture compared with thin material band in the fastening piece plate-like portion office of passage by processing equipment by comprising compared with the aperture of thin material band, extend through aperture to allow a pair attachment members of tabular fastening piece.

39. methods according to claim 36, is characterized in that, material bands comprises a pair concave wall along band longitudinal extension continuously on the either side of at least one passage; And

Formed in the fastening piece plate-like portion office of passage and formed by the aperture compared with thin material band by being included between a pair concave wall compared with the aperture of thin material band.

40. methods according to claim 36, it is characterized in that, also comprise be formed at least one passage described by described processing equipment fastening piece plate portion between by least one elongated window compared with thin material band, so that at least one thicker of the band of remaining adjacent windows is divided, for the formation of at least one thick annulus of tabular fastening piece.

41. methods according to claim 40, it is characterized in that, form at least one elongated window and comprise formation by described at least two elongated window compared with thin material band, so that at least two thicker of the band of remaining adjacent windows are divided, for the formation of at least two of tabular fastening piece thicker annulus.

42. methods according to claim 36, is characterized in that, described band be rolled or drawing so that the section thickness providing it to change.

43. methods according to claim 36, is characterized in that, band are longitudinally travelled to be comprised by processing equipment band to be longitudinally advanced through have the mould punch press being no more than about 200 tons of tonnage ranks.

44. methods according to claim 40, it is characterized in that, material bands has predetermined hardness, and forms at least one window to form the predetermined hardness that at least one thick annulus does not change the material at least one annulus.

45. methods according to claim 40, is characterized in that, described band has the convex portion of longitudinal extension on surface and lower surface thereon; And

At least one window formed by stripping is brought by removing thinner material rod; be left the convex portion along its longitudinal extension continuously on upper surface and lower surface so that the wall forming thick annulus and extend along the fastening piece plate portion of at least one passage, for the protection of at least one attachment members.

46. methods according to claim 40, is characterized in that, at least one window forming described band is included on the direction that extends between the upper surface of described band and lower surface and carries out punching press to form at least one thick annulus to band.

47. methods according to claim 36, is characterized in that, described band has the convex portion of longitudinal extension on surface and lower surface thereon, and wherein convex portion on an upper extends along at least one passage described; And

By being formed by the aperture compared with thin material band compared with the punching of thin material band in the plate-like portion office of at least one passage being adjacent to upper surface and lower surface convex portion.

48. methods according to claim 36, is characterized in that, described material bands comprises fastening piece plate portion, and described fastening piece plate portion comprises the fastening piece plate portion of at least one passage; And

Cut off each fastening piece from band and the annulus connecting fastening piece plate portion is bent to arc configuration, making the isolated relation that the plate portion of fastening piece is vertically gone up.

49. methods according to claim 36, is characterized in that, being sized to of described hole forms press fit with at least one attachment members described; And

At least one attachment members is defaulted in press fit hole.

50. methods according to claim 36, is characterized in that, making before band is longitudinally travelled by processing equipment, material bands has the hardness in the scope of about 95 to about 105 on Rockwell B scale; And

The band of bending thicker material is to form at least one annulus of tabular fastening piece, and at least one annulus wherein said has the hardness in the scope of about 95 to about 105 on Rockwell B scale.